MTN YOUR SERVICE IS PATHETIC

My Mother passed away on the 15th of June 2020. I called and held on for over an hour to be assisted by the retentions department to cancel the contract. I made the necessary payment and had to call back within 3 days to ensure payment was received. Once again I held on for over an hour. I was promised that the number is now cancelled and would be inactive. Today I decided just to double check the number and noticed I can still make calls. I called MTN and absolutely NOTHING has been done. Now I have to call retentions department again and hold on for more than an hour.