do I get my donator badge I sent him some of my money I think should get it please help me :D

I don't really understand how could you send directly money from steam but if its still working you could send some TF2 weapons to him.

okay

how do I give him a gift

I recommend discussing this with 1WTC himself, as the money you donate will need to be equivalent to the amount your rank requires.

For more information on DMU ranks click here:

[Reference] DMU Ranks