Terrible, unprofessional experience at Telkom billing department and poor systems that do not help customers

On the 20th of June 2021 I received an sms from telkom confirming my monthly debit order amount however the amount was almost three times what I normally pay and upon receiving the sms I called the service which was also a mission to get through as I struggled getting the correct department to call. I spoke to the call centre agent who put in me on hold while investigating and I waited for about 10-15 minutes and while waiting I hear a voice recording prompting me rate the service and if I am happy with the service and at that time I am still waiting to be assisted, eventually the call got cut before the agent could assist me and he did not bother calling back, I called again and spoke to another call centre agent regarding the incorrect billing and she also made me to hold while investigating, upon coming back the lady confirmed that the account was indeed incorrect and it needs to be corrected, she told me that the turn around time was 72 hours to get feedback and that once the query is resolved telkom would send me an sms. Tuesday I received an email confirming I must do a survey based on the quality of service I received and "The query that they apparently resolved",, This morning I call Telkom to find out if the query was resolved since the debit order is going off tomorrow, the agent tells me that he cannot locate any queries on the system in relation to a billing query and the only way to do that is to get reference numbers, i tell him that I did not receive any reference number while on the line or via email or sms, he then says he cannot see anything on his system and the billing issue is still not resolved but he lodged a new query, so I am here now Telkom is gong t debit my account while I reported the issue on time and no none bothered to do anything and I am now holding to speak to a manager and I have been on the call for 56 minutes and counting and I doubt the query will be resolved. I am so disappointed at this unprofessionalism and I feel undermined and disrespected as a telkom customer for many years and this will be the last time I ever do any form of business with them and after holding for so long the call just got cut