you can get any users first name, last name, phone number
btw if you are new in this marketplace the payment system is a bit weird, to buy just google "$300 btc to dollar" get the exact price in bitcoin, click "BUY NOW" select bitcoin (or other crypto if you want) and send the exact amount
[Verified Purchase]
it does work but its mostly useless, many people don't use gmx + most of them also don't have a phone number attached. it is useful if you wanna do social engineering