Sorry to hear that you got scammed, OP.
But this was a known scammer with a negative reputation from the beginning. A simple check of his reputation would have revealed exactly that. The thread was also locked and self moderated to prevent anyone from commenting negatively, another obvious sign that this is a scammer. Never deal with gift card sellers, without reputation, period. Let alone people who lock and self moderate their sales threads.
Not to mention that all of his "vouches" are delivered through his alts, who are conveniently, also tagged for scamming.
Next time, please do be more careful. This was very obviously a scam. The chances of you retrieving the funds are tiny.
BTW, please rearrange/edit your post using this format:
[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]