LTE Problems not sorted

I have 3 contract lines & 5 prepaid lines with Telkom. My internet line is an Uncapped LTE package. I have been complaining to Telkom since last December 2016. Over the past 2 months I have called the customer care line on 180 on numerous occasions. My speeds are very erratic. I used to get 25-30Mbps. Over the last 9 months, my speed has dropped to between 0,25Mbps to 8Mbps. The latency(ping) is between 150ms to 1200ms. I had a technician by the name of Senzo at my house, he couldn't believe how bad the service was. I then had another technician by the name of Charles(Congolese) gentleman at my place. He tested for close to 2 hours. He sent all the reports to Telkom & assured me my problem would be sorted within 2-3 days. This was on the 11 September. The LTE tower is about 500m from my house. Speeds are always slow, I use Showmax a lot & cannot stream most of the time. The technicians agreed that there is a problem with the tower as other areas speeds are much faster. When they tested at around 8:30am, I was getting about 0,50Mbps. I am now frustrated as I signed up for LTE because of the speeds