CheckNGo

Did you talk to the people at the local office or with corporate? Usually, the local office staff are trained to make excuses and bluff consumers who call asking for an EPP, for obvious reasons of course.

You should call corporate and have a talk with them.

I definitely agree with stevebarris - call corportate, from what I have been told the store level is very limited on what they can and can't offer, plus normally to put on a extended payment plan involves you defaulting on the loan that freezes additional fees and interest from being added from the day you default.
The store would like to avoid that happening since it counts against them usually But, corporate should be able to offer you an EPP.