Goodmorning Im having an issue with Vodacom

Goodmorning Im having an issue with Vodacom. I've since canceled my fibre account with them and the relevant department has confirmed that telephonically so I further requested a paid up letter from them and they directed me to their legals department for the letter but they refusing to issue the letter to me because they say that on their system it has not been updated that my account is paid up. So im on call with them every week for assistance from last month and im still waiting for assistance.