Job Offer - Programmer [Paid] Programmer(Taken)

I need a programmer to make a payment sdk from scratch that does the following
1. Collects payment from a user to pay the game
2. Pays the user when the user has won a certain amount in the game
3. User can access his account across all platforms.
4. Sdk is for Gamemaker studio 1.4

Pay is 700 pounds.

Any takers? Please send a dm. Thanks.
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