Ontopup was useful when we needed it (whilst on holiday) but we thought we had bought a one off top up. In fact they had signed us up for a monthly subscription which we only noticed after paying for... See more
Company replied
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Review summary
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Based on these reviews
Start off by saying this site is a third party site and charges a premium for something you can buy at cost elsewhere but accepting that, I think this site gets a lot of bad press due to the unexpecte... See more
Company replied
Got eventually there. On trying 150 online a recorded message just says not enough credit to make the call. Need to top up but does not advise how. Waste of digital effort.
Company replied
On-line top-up worked reasonably well, but my 1st attempt failed miserably and I needed to get assistance from EE (top-up) help line, but in the end, they sorted it out for me.
Company replied
Company details
About On Top Up
Written by the company
On Top Up provides an easy way to purchase topup vouchers and credit for Pay As You Go mobile phones. We cover all the major phone networks, allowing users to add multiple phones on different networks to their account, and topup whenever they need.
Please note, that any accounts that opt-in to Auto Topup will have their subscription renewed automatically each month, and for security purposes you will need to log into your account in order to apply the credit to your mobile phone.
Our optional Auto Topup service allows users to automatically buy a topup every month, to help ensure they never run out of credit on their phone(s). The Auto Topup service can be started and paused or cancelled at any time simply by clicking a button in the user account area.
Our Customer Service team are on hand 24 hours a day to help out with any queries you may have. Click the Contact Us button below to send them a message or give them a quick call. If you have any queries regarding your account, please call or email us rather than leave a message on Trustpilot, as we will be able to help you much faster.
Contact info
Suite 2, First Floor, Braywick House West, Windsor Road, SL6 1DN, Maidenhead, United Kingdom
- 01322 250194
- support@ontopup.com
- ontopup.com
3.3
Average
4K reviews
Replied to 98% of negative reviews
Typically replies within 24 hours
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See how their reviews and ratings are sourced, scored, and moderated.
auto deduct money without you knowing…
auto deduct money without you knowing and removing your payment detail is not even on the site you need to contact their support which they don't respond!!
10 March 2026
Unprompted review
Reply from On Top Up
Dear Kristian Avash Shrestha,
We are sorry to hear that your experience with us has been difficult, we do try to make the service costs as clear as possible. We would be glad to look into this further for you, unfortunately, we have not been able to locate a matching account.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Kristen
this is the first time I've used this…
this is the first time I've used this company to top up my mobile, I topped up by £10...they then charged £1.80 , for processing , hours later and the topup has not been added to my phone, which is not good enough, I paid by cc, I have also closed the account, so next thing I'll do is contact my cc company, I have emailed ontopup. I'm not giving them any longer .
9 March 2026
Unprompted review
Reply from On Top Up
Hi Sir/Madam,
We are sorry to hear that your experience with us has been difficult, we do try to make the service costs as clear as possible. We would be glad to look into this further for you, unfortunately, we have not been able to locate a matching account.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Kristen
Reply from On Top Up
Hi Nick Butler,
We are sorry to hear that your experience with us has been difficult, we do try to make the service costs as clear as possible. We would be glad to look into this further for you, unfortunately, we have not been able to locate a matching account.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Kristen
Reply from On Top Up
Hi Tanveer Iqbal,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Kristen
Absolutely horrendous
Absolutely horrendous. DO NOT USE THIS SITE TO TOP UP YOUR PHONE…..
Took money….but no email….no activation code..no pin…no email nothing…despite them telling me they had sent one to confirm my account with them was active…
I wasn’t sure if this was a scam company…told them bank had blocked them ….so can’t access my account…at least I got money back via the bank…they’ve said nothing to make me change my mind this is not a scam in some way….
Top up at a post office …..easy peezy…..wish I’d known beforehand I could do this….
5 March 2026
Unprompted review
Reply from On Top Up
Hi Sandycj,
We are sorry to hear that your experience with us has been difficult, we do try to make the service costs as clear as possible. We would be glad to look into this further for you, unfortunately, we have not been able to locate a matching account.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Kristen
Unauthorised claim
They have claimed a payment exactly one month later. I did not ask them to do this so watch out if you use this company
5 March 2026
Unprompted review
Reply from On Top Up
Dear Catherine King,
We are sorry to hear that your experience with us was unsatisfactory, and we thank you for your time. We would be glad to look into this further for you. Sandro has contacted you via email to assist you further regarding your concerns.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
Reply from On Top Up
Dear Vish Prymas,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
Do not use
I stumbled on this site trying to top up my 02 payg and didn’t realise it wasn’t anything to do with O2 - I topped up and they take a fee for the service so it is a rip off mascarading as a service - the top up doesn’t then arrive without steps you need to take to claims it with a codes etc. not a good service and expensive and then the cherry on top… a month later without and emails or messages they charge again - no doubt there was a box I needed to untick… horrible business! Just go to your phone provider direct and don’t fall for this scam!
2 February 2026
Unprompted review
Reply from On Top Up
Dear Paul Irvine,
We are sorry to hear that your experience with us was unsatisfactory, and we thank you for your time. We would be glad to look into this further for you. John has contacted you via email to assist you further regarding your concerns.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Charise
Instructions easy to follow.
7 February 2026
Reply from On Top Up
Dear Ian,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Charise
My money is taken without crediting my…
My money is taken without crediting my phone line. Very ridiculous
6 March 2026
Reply from On Top Up
Dear Chiemela,
We are sorry to hear that your experience with us was unsatisfactory, and we thank you for your time. We would be glad to look into this further for you.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Charise
Scam
Scam, topped up, thinking it was my mobile carrier company. Never gave it another thought, I only topped up because I was on holiday. Checking statements found out I was paying another company never thought I had an account with OnTopup so never checked or used the top ups for my phone. Still charged me for 10 months. They are deliberately confusing scam artists.
Adding just one of the Transaction ID
6 June 2025
Unprompted review
Reply from On Top Up
Dear James,
We are sorry to hear that your experience with us was unsatisfactory, and we thank you for your time. We would be glad to look into this further for you. John has contacted you via email to assist you further regarding your concerns.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
Shocking this company is still allowed…
Shocking this company is still allowed to trade. Charged me for top up for giffgaff, did not receive a pin. Tried to ask for refund or pin and advised couldn't since the transaction was successful. If try register the minute you tap your provider takes you add a top up before allowing you to input any info
3 March 2026
Unprompted review
Reply from On Top Up
Dear Angela McGarvey,
We are sorry to hear that your experience with us was unsatisfactory, and we thank you for your time. We would be glad to look into this further for you. Genesis has contacted you via email to assist you further regarding your concerns.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
THIS IS A SCAM
Having giff gaff unlimited
They send you an email pretending to be from your phone line supplier NONE of the money you pay goes the the phone company and it's almost impossible to get it cancelled. They use a subscription method which protects them from scamming laws, and stops you from calling the bank and cancelling the direct debit.
ONLY go through your phone contract supplier to deal with top ups
These guys have been scamming people out of money for years. BEWARE!!!
5 March 2026
Unprompted review
Reply from On Top Up
Dear Chris Munro,
I hope this response finds you well.
I am sorry to hear that your experience with us has been difficult, we do try to make the service information and costs as clear as possible. We wish to inform you that we are a legitimate and fully functioning service.
Please don't hesitate to reach out to us directly so we can help you with your query, simply by confirming the credentials of the ac-count in question. You can find us at the following link: https://ontopup.com/contact.
Regards,
Charise
Instructions easy to understand
5 March 2026
Reply from On Top Up
Dear Mrs. Margaret Watson,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm Regards,
Charise
Scammer company
Scammer company, charging my card every month without me knowing
31 December 2025
Unprompted review
Reply from On Top Up
Dear Sir/Madam,
We are sorry to hear that your experience with us has been difficult, we do try to make the service costs as clear as possible. We would be glad to look into this further for you, unfortunately, we have not been able to locate a matching account.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
Reply from On Top Up
Dear Mr. Webb,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
A+++++++++++
1 February 2026
Reply from On Top Up
Hi J. L. Barton,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Kristen
Reply from On Top Up
Dear John Paul Docherty,
We are sorry to hear that your experience with us has been difficult, we do try to make the service costs as clear as possible. We would be glad to look into this further for you, unfortunately, we have not been able to locate a matching account.
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
Reply from On Top Up
Dear Lanre Odunfa,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
Reply from On Top Up
Dear Michelle Robinson,
Thank you for taking the time to post a review. We truly appreciate any customer feedback, as we always aim to improve our service. I am glad to hear that you enjoyed using our service!
Feel free to let us know if you have any further concerns, simply by confirming the registered email address of the account in question. You can find us at the following link: https://ontopup.com/contact.
Warm regards,
Ana
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