Second, you could post the link to the item page and the seller's store profile so people can blacklist them and keep away. I have had good success with this in the past. If you are polite, patient and persistent enough, I believe you can get your money back. Even if you still miss the refund window, you can contact support. If the seller tries to offer you a partial or no refund, insist on a full refund. The dispute can only happen within 2 weeks of the moment the order is marked as delivered - either manually by you or automatically by their systems after a given period.
Provide whatever evidence you have, attach it as photo and video. First, go to AliExpress as soon as possible and open a dispute in order to get your money back.