I immediately flashed back to the most recent proposal for the same which required me to make them a guaranteed processor of at least $5000 per month for at least a year to "self fund" the accelerated payback.

I responded that I would like to hear what he had to offer. To which he replied that he would find out what was owed and send me a proposal, and that was over two weeks ago, with no further reply.
i got something like this a while ago they wanted to offer me 13.5% , when I told them my new billing co gives me 10% and weekly payouts I never heard from them again.

I will find it hard to belive that anyone would really go back to them as a primary processor. if you havnt found a better deal by now you probally were not making more than a few bucks a month.