I'm sure there are a few rules that they've neglected but by and by, they seem to try to stick with it. I'm in Oregon so I got them to settle because of their neglect to follow the new interest rates.
As for teri and the original post, I think the rule about ach transactions is for those that automatically take it out. My CashNet was something that I had to go online and tell it to extend or pay in full before it came through. So I think their contract holds up in that case, but technically you could pay them via something else before they were to do that. I'm not positive about that one, but I think that is why they can tell you no.
As for them not working with you, I couldn't find anyone to work with me. I had to bring in the big guns to get them to fix the apr error, and in a show of good faith, they also accepted my situation and made a payment plan of four payments, and those payments are only once a month. But like I said, I got lucky that they were obviously doing something illegal so that I could bring in the big guns.