Your trust score shows as +1 / =1 / -1 ( ;dt)
The negative feedback you received says: "Bought account.", it didn't say you are a scammer or tried to scam anyone.
btw, I respect you admitted buying this account when you got caught and didn't deny it.

Anyone who wants to make a deal with you knows how valuable your account is and you want risk losing it for $500. Hence, they won't mind sending first.

If this user and everyone you make a successful deal with leave you a positive feedback, more traders will trust you with bigger amounts. This is the way to build a good reputation.