Telkom Mobile not responding to issues

I have a Futurehood LTE Telkom Mobile product. I logged a call on the 11/3/2016 (***) for very slow internet that keeps on disconnecting. A week later I received a call and was asked whether the issue was resolved and I said NO, its was a little bit better but definitely not resolved. A few minutes later I received an sms stating that the issue was resolved. When I got home I thought I would test the internet, and guess what , still very slow, but at least not disconnecting the whole time, so I thought to leave it. Two weeks ago approximate my internet speed dropped again way below acceptable so I tried to log a call and directly after the call my net sped up again so I didn't think much of it. Last night my internet did not want to connect at all so I phoned at 17:45 and I was told that the original call was re-opened and that I would receive a call this morning, that never happened, so I called at 11:10 and I found out the re-opened case is indeed closed and that a team leader will phone me. 30 min later and no phone call. Now what are the turnaround times for service? Why can I not get my internet service that I want an am paying for!? Not acceptable!