Eight years ago, Advanta credit card debts were removed from my account after Advanta was dissolved by the FDIC. I still had a small business balance. A collection agency named Carson Smithfield sent me a letter last week saying that I was to pay them 20% of the amount due. Do they have an agreement with a defunct credit card company? I recently applied for a HELOC and Experian was consulted and they had a lot of inaccuracies on my credit report and I was denied. Now the dogs of Carson are on my tail. Any suggestions?