According to AliExpress's policy, for the case of no reason for return, the seller should first contact the buyer and negotiate to resolve the problem. If the buyer cannot be contacted or makes unreasonable trouble, the seller can also choose to apply to withdraw the return application, or negotiate with the buyer to re-sign a refund agreement. In this process, it is necessary to ensure timely communication and timely processing so as to resolve the problem as soon as possible. Finally, if the buyer's identity is suspicious or there is malicious refund behavior, the seller can also complain to AliExpress customer service to protect their own legitimate rights and interests.