Customer Credit Assist

I have app**** for Customer Credit Assist and was requested to send all settlement letters through for payment after my application was approved. All of my settlement letters has now expired and I already saw that one of my settlement letters the amount to pay is now more than it was when I sent them the letters. I have called and emailed and I am getting absolutely nowehere! This is truly been a long process. The guy who went through my application was super nice and I thought that everything was smooth sailing. Then I got a call a few days later and I was not very impressed with the customer service I got. I just really want the process to be over and done with! I would appreciate it if someone from this department could call me back as I tried calling today and I am having no luck.