My first order with CataWiki: for delivery I had to pick the package up from a UPS pickup point. Odd, since I paid € 38 in shipping. Checked the costs on the UPS website: standard delivery from Italy to Netherlands with pick up would have costed not even € 20. Catawiki states on its website: "Should the actual costs of shipping be lower than the calculated fee, the seller will directly reimburse the buyer for the overpaid costs." So I contacted the seller: said he would get back to me. And then stopped answering messages. So I contacted CataWiki for support since there is no FAQ page on this. Alas, their customer chat service doesn't work: no one answers at all. And to send a mail, you first need to install the Catawiki app. It is impossible to contact CataWiki via mail without the app even if you have an account on their website. I wrote a message clearly stating my question and it took them five days to reply with an AI message. That message didn't address my question at all. If it wouldn't solve my issue, it redirected me to the FAQ or try again. I gave the seller a negative review. He objected, but did not provide any payment proof. I complained to CataWiki again, now also about their service. Now an actually person answered my query: ask the seller for reimbursement. Which I did yet again. As a courtesy for the inconvenience caused, CataWiki provided me with a 10 euro voucher for my next bid. It's a gesture appreciated but it did not resolve the issue. I pointed this out, and they contacted the seller. Nothing came out of that. I won't be ordering via Catawiki again. And I discourage anyone to do so. It works until it doesn't. Sellers can ask whatever they want for delivery. If you need customer support, the service is abysmal. I paid 9% + € 3 for buyer protection, but I didn’t feel protected.