I also have been grappling with ASG. For two months now they have been calling me off and on about an account I have been paying on.
Incidentally, my first contact with them was a couple of days after I had made a payment on the account in question. I first tried to work out a payment schedule with them, they didn't want to do that, they wanted the whole amount.
I told them I didn't have that much money on me, he somehow pulled up the fact that I had made a down payment on a car recently! (I had had an accident and my car was totaled.