Edgars is just not worth rescuing

I have been trying to close my Edgars account since October. I have paid the account up in full and sent an email to the appropriate department. I have been a customer for more than 30 years. One would think they would care! Instead, today I receive an sms saying I have not paid my account. I have not received a statement from Edgars for months and months which is part of why I cancelled my account because regardless of who one speaks to at the Call Centre, they just cannot seem to understand that I need a statement/invoice in order to pay an account.