in paypal dispute, he say the key is valid... a big argument, after i post the screenshots, that demostrates thi key is not valid... in the case the key were valid or i was allready used, the steam message will say the key is duplicate...
what a scam user.... and lier.
will update...
It seems that from the pictures you posted that this indeed was a scam.
I'm sorry you had such a bad experience on this forum. Unfortunately, there's not much that people can do now other than warn others not to deal with this same user.
I'll be leaving him a negative trust rating soon, thanks for the screenshots.