What happened:: I post the topic want to buy aws ec2 account on bhw forum, his skype is: gregregervq (blackhatworld.com). He said he is the hero member in bitcointalk.com, also a member which has a good reputation on bhw. After I did a research, I trust him straight away because he owns the hero account on bitcointalk forum. After send him the payment, he tried to said with me he got a problem with teamviewer and gone. WATCH OUT FOR THIS GUY.