re: Rebuilding credit

This is a bit strange. I'd get it in writing, then take it to a competitor and see what they think.

If it's legitimate they'll bargain with you. If it isn't legit you probably won't get it in writing, and you should have a talk with this person's supervisor.

With all due respect, I suspect you misunderstood something. I don't see how someone can report your performance on a loan if they didn't give you the money ahead of time. That wouldn't be a loan, would it?