How Can i do that and where ?
You could make it in this board -
Scam Accusationsand follow this scam reporting format with all the evidence/details supporting your scam accusation
[b][color=black]What happened: [/color][/b]
[b][color=black]Scammers Profile Link: [/color][/b]
[b][color=black]Reference Link: [/color][/b]
[b][color=black]Amount Scammed: [/color][/b]
[b][color=black]Payment Method: [/color][/b]
[b][color=black]Proof of Payment: [/color][/b]
[b][color=black]PM/Chat Logs: [/color][/b]
[b][color=black]Additional Notes: [/color][/b]
This does not usually compel the accused from acting open the issue and have it resolved but helps other members know what is going on with the service.