I have a closed XXXX XXXX XXXX internet account with hardcopy final bill balance stated as {$0.00} and closed. Enhanced Recovery Company contacted me nearly 1.5 years after the account was closed and claimed I owed {$180.00}. I sent them a certified letter with copies of my final XXXX XXXX XXXX bill showing them that they were making an error. Enhanced Recovery Company then sent negative reports to the credit bureaus within 20 days of their initial contact. I have sent Enhanced Recovery Company XXXX certified letters trying to clarify and get this off my credit report but they do not respond to my demand of validating the debt and any papers that show I actually have a debt.