Lengthy repairs and then run around

My landline has been faulty since beginning of December. I have followed up every second day and yet service still faulty. I ask every 2nd day that I need an ETA. Yet no one can tell me. I work from home and need Internet. I am thus using my Telkom Mobile Data contract for connection. I have thus used more than 3 times my limit. Telkom will not credit me for that. I will have to pay. I can only log a dispute for the landline once the fault is reolved. I pay a 3rd party for fix line Internet access which includes my ADSL line rental. I wonder if Telkom will credit that as well? I need someone at Telkom to assist with Estimate to Repair and no one can. Yet my debit order for line rental goes off as well as mobile data use. As well as my 3rd party ISP which I havent used in 6 weeks go off as well.