I have my own registered design certificate for my product in UK IPO. I am selling the same product design which I have certificate for. Someone has claimed that I am infringing his design rights. Amazon has deactivated my listing. I have submitted my certificate on Amazon appeal center. But Amazon has rejected my certificate. Then I have called the health support center. They said that my certificate has no problem. My certificate is absolutely ok. There is no problem. But the complainant certificate date is earlier than me. I have received my certificate after his certificate issue date. That's why they are rejecting my certificate. But I have registered my design in UK IPO. So I am valid to sell my design product in UK marketplace. I have contacted UK IPO and discussed the matter. They advised me to contact Amazon as it is Amazon discretion. Now how can I solve this issue? I am financially losing a lot. It is damaging me.