Catawiki is a scam in the sense that they have no support - if something goes wrong in the transaction between you and the seller, expect nothing from Catawiki - they do not respond to your inquiries, your money is lost! Catawiki puts you in touch with interesting purchases at cheap prices - which is good - unfortunately the company Catawiki is without support when you need this, so it is therefore very risky to shop through Catawiki