Not sure.. [Need advice]

[Lured Yah]

I just bougt membership from a guy that wouldn't use teamviewer to make me p2p. He claims to have used an USA SMS pin. However when I log on it says active subscription.

I think it was most likely paid with a CC/Paypal so it could be charged back leaving me with negative credit.
Should I pay him?

EDIT: He paid with a Mastercard, evidence below. Please ban him.

His sythe profile: http://sythe.org/member.php?u=322117
His topic: http://sythe.org/showthread.php?t=1295994

edit:

 

[Snow Patrol]

If you cancelled the subscription immediately after you should be fine.

I've banned him as a precaution for lying about subscription methods, thanks Bas.