A fraudulent site, more than half of the keys sold are already in use. To avoid.
In case of a refund request, the procedure is almost impossible, they will ask you to report the fraud committed by the seller to the local police or to any other competent authority in your region knowing that you only have the seller's nickname. They refuse to give you the full name of the seller to help you get the police report. After a few days they close the ticket on the pretext of non-cooperation.
Self-respecting websites (Amazon, Aliexpress) guarantee you a simple refund