Pathetic telkom service!!!

I have a Telkom landline. In November 2019, I received a call from Telkom informing me that my line would be suspended if I did not pay. On 6 December 2019 I made a payment of R800. However, I paid using the incorrect account number. My late Mom's. On 11 January 2020, I visited the Telkom branch in the Clearwater Mall. I explained to the workers the situation regarding the incorrect account and they assured me that the R800 would be transferred as payment on my telephone account. I received a call from a Telkom worker, Tintswalo, on the same day assuring me that all was in order. However, the situation was not rectified. I revisited Telkom on the 18th and 25th January 2020 again. Once again, I did not receive any information or call that rectified my account. On 9 February 2020, I made a payment of R500. The telephone line was reconnected and up and running. Sadly to say, my telephone line has been suspended again for approximately 2,5 weeks. I visited Telkom, Clearwater branch , today, 23 March 2020 where I requested a statement for the period December 2018 - March 2020. This confirmed that the R800 payment, was not transferred onto my account. So now, my late Mom, has a credit balance of R800 on her account( which was supposed to be closed). I am at my wits end. I am frustrated and highly annoyed.