Useless mtn billing and not willing to cancel contract

Mtn South Africa is truly the most terrible WiFi service I have ever used when we were using it, after which we canceled it and moved out the country.

I moved to Zambia in July but before I did I paid my account up and requested that it be canceled. I have received countless emails saying that they would assist. I am now getting handed over emails stating that I am in arrears and I must pay up in full to continue service… I do not even live in the country anymore.

I have tried everything and nobody actually helps although they cc so many people in their emails and apparently all equally useless

I actually don’t know what else to do honestly. I’m just getting charged every month and asking if I’m still happy with the service… oh and by the way end of May my contract ended and I still gave them notice in April