Thanks for the tip :P unfortunately GMG doesn't allow to buy more than 1 game per account :(
I tried that xD problems comes when you try to use the same credit card or paypal accout :(
How many key do you offer BTW?
Oh I knew about the credit card thing but didn't know they blocked paypal from being used with the same account as well o_0.
I don't recall my GMG profile having an specific paypal set up (I though it was like with steam, where you decide what paypal to use right before the purchase, letting you use any account).
Dunno about the offer. The usual price for keys on trading is $1.25 each. If anybody wants to convert money to keys with ease then this would be a good trade. 3 keys for the DLC code, nobody loses any money on it. Looks fair I guess.
It's $3.75 with this code: GMG25-UAAHK-6AI9S
http://www.greenmangaming.com/s/ar/en/pc/games/action/sleeping-dogs-nightmare-north-point/