I checked my Transunion credit score and it dropped 46 points. Even though I had "opted out" before applying for a mortgage, I had a collection pop up the same day that I applied for a mortgage on-line. The collection is from First Revenue for $80.80. I called Transunion who didn't have the name of the OC and suggested I dispute the item. I did but then googled First Revenue, got phone number, and called to inquire about the OC. I was told that the OC was Cingular Wireless, this account was supposedly charged off in December 2002. I have had the same wireless account since then and pay my bill in full every month. I am sure I do not owe them anything. I checked and the SOL in my state is 3 years. What should I do about this account? They did offer a pay for delete, but I don't think I owe this. Needless to say, I need it removed immediately so I can get my 724 Transunion score back. Makes a difference in my mortage rate. Any help would be appreciated.