LTE upgrade disaster and no service to follow

I recently upgraded my Telkom mobile data service account to the new LTE. After a flawless service for two years (with great support) upgrading to LTE has been a disaster. Firstly, the service was sold by an out sourced company that could not find the tallest building in Cape Town CBD to deliver it. It took nearly two weeks before they delivered it. The second problem was activation, which only occurred after many phone calls and a week or two later. After returning from holiday and the new LTE service now active, it is not working! The internet drops after a certain amount of time and requires the modem to be reset. I've called the and logged a fault and was given a case number on 10/8/2015 (***8), still no reply. I called to follow-up two days later and was told the turn-around time is 24 - 72 hrs. It is now nearly a week and no reply/ no working internet. LTE has been a complete let down and a return to the unfortunate Telkom service most are accustomed to.