Ans: At the time of purchase you will be told whether the item is returnable or not. In case the product is returnable :
Login to AliExpress Website or App.
Go to ‘My Orders’ section and choose the particular item that you want to return.
Click on the ‘Contact Now’ option given beside the particular order to get in contact with the seller.
Message the seller and upload a picture of the product. Click on ‘Send’. And you’re all done!