Yes, I kept pay stubs so I can verify W-2's for taxes, remember periods of when I worked somewhere, etc. Maybe you should start a file for everything, put stuff all together like your closed bank account statement, etc. At this point, it being so confusing, I'd find where the closest office is and go in and talk to someone face-to-face and come up with a plan so you know exactly what they want now. It could be that forms and monies, etc. have crossed in the mail, I know for my health insurance that often happens and I get dunning letters after I have paid, etc. because the humans are slower then their computers at figuring out what is what.