Very reliable seller
Received very quickly and packaged very well
Thank you great Christmas present 🎁
14 December 2025
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Koi cards are amazing
Can always get the new sets on launch and always great condition. Love this website.
2 December 2025
Joel is always helpful
Joel is always helpful, and answered my emails quickly. Delivery is great and always a pleasure to order from them
20 November 2025
Quick delivery
21 October 2025
Best place in uk for japanese pokemon…
Best place in uk for japanese pokemon cards wouldn't use anyone else
20 September 2025
Ordered one black bolt and one white…
Ordered one black bolt and one white flare booster box, items arrived swiftly, and they even included a free gift of a black bolt pack, that had an SR inside! Stoked they included the extra pack and will defintely be a returning customer
26 June 2025
Amazing business
The items I bought shipped very fast and they arrived in very good condition. I've ordered from them for a while now and eveytime they never got anything wrong. Would highly recommend koi cards.
9 June 2025
PSA 10 Service
Always a good service, great price and so well packaged! Can buy products with complete confidence!
8 June 2025
Spot on order and fast!
15 May 2025
Reply from Koi Cards
Thanks so much for your kind words! We’re glad your order arrived safely. If there’s anything we could’ve done to earn that 5th star, we’d love to hear your thoughts. Every bit of feedback helps us improve!
Fantastic service and delivery
Fantastic service and delivery. They really look after their customers. I was given some freebies as a pre order item was delayed, although it wasn’t their fault. Secure and quick delivery. Thank you! - Jack
26 April 2025
Unprompted review
Great service
Great service, fast shipping and well packaged. Will definitely be using again in the future.
5 March 2025
Fantastic company ran by a fantastic…
Fantastic company ran by a fantastic individual; I’ve made 2x purchases now with Koi and both times I received a well-packaged order within 2 days of placing. 100% trusted seller with fair prices going above and beyond for their customers. 10/10 - I’ll be back to order again shortly
5 March 2025
Unprompted review
Fantastic customer service and price
I was lucky enough to be Koi cards first website order, and all I can say is wow. Best price for the Battle Partners booster box I'd found, incredibly fast shipping and packed with care.
They also threw in a free card sleeve and top loader for the big hit of the box - such a nice touch!
The seller is super friendly too, and someone I've chatted with a few times just about Pokémon in general, with no sales talk from them at all
Would happily recommend to anyone looking for Japanese Pokémon cards in the UK
24 February 2025
Unprompted review
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