After your Amazon account is closed, re-registering depends on the reason for the ban. If it is because of a violation of Amazon's regulations or policies, you need to contact Amazon customer service first to understand the reason for the account being blocked and whether it is possible to lift the ban. If the ban cannot be lifted, you need to accept the fact that your account has been closed and look for other e-commerce platforms to buy or sell. Therefore, re-registering after your Amazon account is closed is not always possible.