Telkom bad service

I have a LTE uncapped WIFI with Telkom, which does not work. I reported it to Telkom on 10 March 2018. I received a reference number and after numerous have been unable to get anyone to tell me when it will be repaired . They closed my call, stating it was fixed, I advised them it was not fixed and they apologized stating a duplicate reference was open. I no longer have a ref number and the WIFI is still not working after 5 months. I requested a refund of my R800 for the months I did not have service, but was advised that I would get it after the problem is sorted out. I cannot get hold of anyone to advise what the problem is and why it's taking so long to resolve and I am now R4,000 out of pocket and have to buy prepaid data to the same service provider that cannot assist me at an additional R500 per data load