Please Cancel the account!!

I sent an email on the 11th of January requesting that my account ***4 be cancelled. As far as I know it was the only one I had, you responded on the 13th with a link that I struggled to open for a very long time. Months later I can sent threatening messaged out outstanding bills for a different account. I called and was told I needed to follow up there were no notes on your system and that I had more than one account. Would some one please explain why I still had an account with you, why I have more than one account, why that was not communicated to me and why must I follow up on something that should be done internally. I have not used your services in more than a year and I do not need them either. Please cancel and explain why it has not been done to date. Thank you