jm ¡ùXÿ)Má¸%m[Dé
²Ì$ßD¥PËòÊÙLYou should just add a option for the receiver to agree that he received what he wanted, and give the money to the seller instantly.
https://whatsonchain.com/tx/56530ffb0a3de65ac5bfec19e2d0a2fe7291f40f8ec45a303ad45dd82bbba0ff