In 2006, I was notified by mail that a credit account I had opened three years earlier was being transitioned to a new, different account. Both accounts are currently reported as open on my credit report, but only the newer one is being counted toward my total credit limit and (presumably) my average credit history length. I called the credit company to have the original account closed as I no longer wish to have it appear as open on my credit history but they were unable to find a record of that account – the only account they could find under my SSN was the second account that was created as a result of the account transition.
What are my options for going about having this unwanted account marked as closed on my report? Could it be that in some way it's attached to the other active account entry whereby closing that would close them both?