Pro Sites Free Trials & Automatically Apply to Pay to Blog

Two feature requests - I would like to make sure that I'm not paying affiliates for users that only signed up for a free trial but never actually paid for a month of service. Could you make it so that there's an option to not generate referrals for free trials?

The second feature I'd like to see is that I'd like to pay my affiliates by applying their referral balance to their "Pay to Blog" balance rather than paying them via PayPal - is there a way to do this? It would take a lot of the manual management out of the program!