I had a similar situation and this is what I've learnt. Sometimes it's not the Credit Bureaus fault, in this case Equifax. When Equifax verifies an account your disputing they send a electronic request to the creditor. If the name, social security number and birthday matches, then Equifax will claim ACCOUNT VERIFIED.
That can simply mean that the creditor still has your information in their system. They may have agreed to delete their report to the bureau but the original account information can still be in their database. My suggestion is to have the creditor write you a letter confirming they agreed to delete. Call Equifax dispute over the phone and get their fax number. Fax a copy of the letter from the creditor to Equifax, and mention in your letter that Experian and Transuinon has since deleted as well. Or you can contact the creditor and advise them that Equifax is still reporting the account. Sometimes there can be glitches between the Credit Bureau and the creditors databases, I've been given many excuses and explanations in the past lol.
Faxing a letter has worked for me numerous times with much success. Good Luck!!!!
