Horrible Experience with this company. Sold 3 copies of a card to a buyer. Week later he states it has not been received. No problem - so I respond to wait a week more, if it doesn't arrive I have the proof of postage so can open up a claim with postage company. A week later, he opens a dispute that it has arrived, but now the order is damaged and incorrect. I receive a notification to resolve. Again, no problem - I reach out to the buyer to find out more information and obtain proof to try get this resolved. I receive no response. So I'm unable to do anything further. Cardmarket decides to restrict my account fully, preventing any sales. After reaching out to their support even after stating they are not responding I'm told that it is my issue to resolve. I requested pictures from them and they don't provide me anything. I'm just expected to refund them and take a loss with no proof, no direct communication with buyer or I cannot use the site. I'm just glad this happened with a smaller order, because it clearly shows they will side with a buyer no matter what and just expect you to take big losses if it was a large order. On another note, each response from the support staff took roughly a week, and one of my emails, I even had to send another follow-up email because they just decided not to respond to my previous email. So on top of horrible service they take forever to respond. Avoid this site.