Telkommobile do not know what they are doing

These are the dates and case numbers for the same issue - coverage and network speeds. ***,***, ***,***,***. Telkommobile sucks at providing feedback. I had to call every time to find out the progress. I have opened up my home to multiple 3rd party technicians sent by Telkommobile and they all confirm there is a problem with the towers which Telkommobile has not fixed to date. In the mean time I can not make proper use of a service I pay for; data being wasted and voice call reception is putrid. I have spoken to call centre agents, who are not knowledgeable, managers who can only escalate and back end technical staff who are clueless on when they have even dispatched their technician. Up till today they have not been able to resolve this issue and keep logging new tickets every time I call. I have not even been compensated for the wastage due to this gross negligence. Of the 20gb I get per month I get to effectively use 4gb as they rest are wasted; same for voice calls. You guys never fail at taking your money when its due and you are always paid in full. Pathetic.