Did you have a chance to call CS? They're great about giving you a free report when something strange like this happens. At any rate, they might be able to confirm that your reports are clean.
It would also be a good idea to pull your full TU report directly from TU or via annualcreditreport.com, if you're due a freebie. Again, don't pay for any scores, though. They'd be FAKO's.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007