You can not return the products through Trade Assurance if they meet all the requirements. Suppose you want to use Trade Assurance and claim a refund on your purchases. Your products must be defective or have a late delivery than promised by the supplier. Alibaba Trade Assurance is a safety program for both buyers and suppliers and protects the interests of both. Hence, it can only be used to open a dispute if the products you have received are damaged, not as you specified them or defected. If your product's technical specifications don't meet, you can apply.