Telkom LTE - Shrinking coverage and degrading connection

I have had Telkom LTE at my home since the first time it was rolled out in my area, so now for at least 4 years already. My second contract is about to become renewable. There was overlap between the first 3-year contract and the current 2-year contract.

Over the last two years my coverage has been SHRINKING! I went from full coverage on their maps with 5 connection bars on the router, to no coverage on their maps and struggling to get more than 2 bars on the router even with an external antennae. My speeds used to be 60Mbps+ download with 5Mbps+ upload. Now I am LUCKY if I get a constant speed above 10Mbps, regularly dropping below that. The instability is the biggest kicker for online gaming experiences.

The signal regularly fluctuates between 1 and 3 bars. As stated, I used to have a CONSTANT 5 bars. I have tried dealing with this through the Twitter team, but they ignore the facts and just read from a script giving me the same advice over and over. They tell me to set "Network mode and choose 4G/LTE only", I tell them it has been like that for months already, 2 days later they copy/paste the exact same message.

After no response for 16 days, I asked what is going on, and they just reply "our records indicated that number [removed] is able to connect to internet, last connection date was today 25-12-2017", completely ignoring the situation and all previous messages. The problem is not "no connection", the problem is "lost coverage and degrading service".

It seems according to the coverage map that more and more is being covered in my area. Given cable theft is an issue here, I will compliment them on extending their services to more people. But it does not excuse taking the service away from a long standing client!

I wanted to get an extra account for my parents at the same address, but at this rate it might not be a viable option anymore!