besided this, i really not care this PSC code was used so i not got any bucks

You are admitting to scamming him?
He is, that is why I am very suspicious when newbie account start giving advice or suggest to other newbie account.
OP did a lot of things wrong here. If you don't protect yourself, you will get burned.
Agree, I never understand why newbie trust to another newbie, why they don't use escrow.