I have been in a similiar situation but I haven't had too much luck.
Here's my story...I noticed a collection account on my report about 4 years ago. After getting no answers from the phone calls to the collections agency, I disputed it just as you did. I got the same result from Equifax, Experian, and Transunion. The collection agency was somehow able to prove to the credit bureaus that the original $1469 debt was mine despite the fact that they were unable to give me anything other than what was on the credit report. I gave up for several months.
After getting educated about credit, I began sending all communication by certified mail with return reciept requested. I requested a statement showing the purchases that were made on this account. Just as the limit on there FTC time period expired, I checked my credit reports and found that it had been removed. The story does not end there.
Well I thought I had won. 4 months later another collection account showed on my credit reports. After some research, I found out this was the same account the original collection agency had months before. They simply sold the account. I repeated the process by mail again and got the same results.
To make a long story short, I'm now on my 6 or 7 agency with this account. I'm exhausted with the process. The evil collections agencies are driving me made. Once they near the end of the timeline, they sell it to another agency. Therefore, I have to start the process from the beginning. Over the years, I've been told that original account was 1)line of credit, 2)credit card, 3)computer purchase, 4)utility service, 5)car loan, 6)cash advance, or some other off-the-wall purchase that makes even less since. May I add that some of the things listed I didn't have until 2+ years after I started this war. The others I still haven't had until this day. If you look at the amount, you'll be pressed to figure out how anyone could rack $1469 on a power bill. I even went as far as contacting the only power company in area I live in (and have always lived in) to get every statement ever listed in my name. Guess what? The statements showed highest balance was $110, latest payment was 4 days past the due date, first account opened 3 months after the original debt was charged.
Results to date
Equifax removed the collection account after agency 3 and original creditor about 3 months ago. Now they won't even add it when the new agency tries to listed it. I guess that paid off.
Experian has the most recent collection agency and the original creditor listed. I will just wait the 10 months to the 7 year expiration. It's futile to fight at this point.
Transunion has only the original creditor listed and I'm waiting for the expiration as well.
Good Luck!
