CPAGRIP & CPALEAD Payment process

hello everyone

i just want to know the payment process on both CPAGRIP and CPALEAD

if you received payment before from one or both please tell me the exact process like if they ask for a proof?

Proof of what do you really have here ? Do you have something in common with these or not ? I do not realise what is going on there. I do think that they have several payment methods and they should work all the time no matter how do you put that ?