u/Glittering-Noise6346

Hey, I have a question: someone in Italy ordered some cards from me here in Germany via Cardmarket. Now that the package has arrived, four cards are suddenly missing. I am 100% certain those four cards were inside—unfortunately, though, I don't have any proof. Now he has left me a negative review because I issued him a refund. Is there any way I can contact Cardmarket Support to ask them to remove the review, or is that going to be very difficult?