Offline program make comission

Hello Author, I am basically want to know about your “MLM addon”. Is it possible to set up a program where my sales representative will sign up a client (while sitting in their living room) not online? Once the contract is signed and approved, the sales rep. will receive $100 advancement. When the payment from the client is received, let’s say he is at 10% commission, and the check is for $5,000. That would mean my sales rep would get $500, but because he received a $100 advancement, his check would be $400. ($100 advance – $500 commission = $400). For each person that he trains, he will get a small commission paid to him for each level. Level 1, he would get 1.5%, level 2, 1%, and level 3 .50%

The problem is how do we keep track of the advancements that they receive for each signed contract?