Has anybody had bad experience with Sallie Mae billing department?

I have heard mixed things about Sallie Mae. Most of the things I have heard is that its not a good place to get a loan through. I think you need to talk to a higher up person. Tell them that you have the payment booklet and that you were told to follow that. Tell them that your not going to change anything unless your loan terms have changed. They might be trying to rip you off. As long as your making your payments on time and in the amount your book says, then your fine. Make sure you keep copies of everything though so you have proof that you are following your loan terms. They cant put you in collections as long as your making the payments.