VERY BAD SERVICE!!!

Good day I cancelledi my service with Telkom the first week of March 2021. I signed up with another service provider which commenced on the 1 April 2021. The problem I have is that I am still being billed and I have communicated this to Telkom on 3 occasions. All I get is a reference number and they promise to sort out the account. This is a very bad reflection on my credit profile and I DO NOT appreciate this. PLEASE this is a disgrace! Credit my account and ensure that my payment profile is corrected.