I recently received a notice from a collection agency for a MCI phone bill from December of 1997 for 98.00. I disputed the amount with the collection agency, as I believed to have a copy of a check that I had sent to MCI in December in my records (couldn't locate it immediately). I found the check about the time that the dispute came back verified. Thinking that I had in fact paid MCI, I sent a cease and desist letter to collection agency. Sent letter and copy of check to MCI about 1 month ago requesting investigation and proper credit to account. Account number on check did not match the info sent to me by collection agency or the account # MCI has on file for me for that phone #. Called MCI yesterday to see where they were in investigation process. They told me that they had closed account in September 1997 and reopened under different account # when I signed up for a frequent flyer mile program for long distance. They tell me that the account that was sent to collections (#2) encompassed October-November. If this is true, I never received a copy of this bill after I moved. I paid the last bill that I received from them. This amount was for nearly the same amount that MCI says I owe on account # 2 at same phone # (97.32 versus 98.00). I told the rep that I wanted this item off of my Equifax credit report and would appreciate it if they could provide documentation that this new account in fact received this payment. The guy also said that MCI hadn't received my letter/check copy yet (I have verification that they have from Mail receipt) and had not begun any investigation. OK. Here is my quandry. I still don't know if any of this sounds accurate. I find it odd that I was switched to a new account for just changing my account to get frequent flyer miles (ironically, I never got those credited to my Continental One Pass). I moved in December. I can understand that they may have sent a bill, and I didn't get it. But here I am. Collection agency has now upped total to 134.00. And I sent them a cease and desist letter. When i asked MCI if I received their documentation, and wanted to work out settlement, they told me that they don't handle my account anymore, that I would have to deal with collection agency. So now what? My credit is not the greatest-I have numerous late pays that are 3-4 years old, as well as some fresher ones as a result of a not so efficient handling of my accounts by a Consumer Credit Counseling Service. I have been paying dilligently on all credit accounts so that they are current for at least 8 months. Any advice is appreciated.