Deeply disappointed in Telkom after taking out an ADSL contract, internet completely not working, no assistance for 3 months and ongoing

I upgraded my unlimited ADSL from 10 mhz to 20 mhz in early July (REF 544730 Xolani) and have had a terribly slow connection every since. I have reported the problem telephonically numerous times and have been promised a technician will visit after telephone assistance could not solve the problem. It is now 6 October and I received a sms yesterday that a technician has been to my home and solved the problem, except no technician actually came and I now have no internet at all! Just a few of my unanswered queries are listed as follows: 3/8/2020 - REF 76BNK030820 (THABSILE - NO REPONSE) 16/9/20 - REF ***5 SPEED TEST DONE TELEPHONICALLY 6.18 (D) and 0.92 (U) (NO RESPONSE) 28/9/20 - REF 63321 Escalation of problem - NO RESPONSE. I called today and they can't give me a reference number as I am told the technician will come today. I have absolutely no internet at the moment. Telkom, I have not been receiving the ADSL internet service that you promised me when I signed up on contract! Simply shocking for any company to let a problem go on for this long.