Here's how it works at Cap1 - and I'm sure this applies to a lot of companies:
When your due date passes, and payment has not posted, the auto-dialer starts dialing your number. It will call until someone answers. Now, when I worked there, we were supposed to put right up front how much was due. I, however, let the customer tell me WHY he was calling. I would always try to do everything I could to help that person with their account- whether it was figure out how to get caught up, how to make two half-payments a month, etc. I know people want to pay their bills (generally speaking) and sometimes we run into roadblocks. Hey - crap happens! I always recommend that if a creditor calls - go ahead and pick up the phone, even if all you can say is "I don't know when, how, or if I will be making this payment." After a company talks to you, they shouldn't call again in the same day.
Like I said earlier, I'm not sure if I personally would finance a car through Cap1. Not saying I wouldn't- not saying I would. Just sayin'!