****ed off

We have cancelled our contracts last year November at the Eastgate Telkom store. Recently we get a statement that we owing R654.00. How is that possible when we have switched to Vodacom because they refused to renew our contracts? Telkom for a huge company your staff are not very efficient when dealing with clients or their accounts. Every month we must pay bank charges to reserve those debit orders which is totally unacceptable.