Ah, got it, so you get leads for a client and when these leads buy the product or service of your client, you expect to get a commission and your client wants to use Stripe for that.
Well I would just go with it, Stripe is used by many users here, it's known to be pretty decent.
There are other payment processors, but I don't think changing to something else than Stripe, will help. If your leads are doing chargebacks it doesn't matter what payment processor you choose, you will get banned if percentage of chargebacks is too high.
