Edit: Okay so there's an investment for this and high chance that it will be a scam or they already did.
If you have strong proof then make a new thread on scam accusation here https://bitcointalk.org/index.php?board=83.0, make sure you follow this format
Code:
[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]