Bad Service From Telkom

I am not usually one to post complaints on social media. But, I am so frustrated with #Telkom at the moment. I have had a contract with them for 2 years for my LTE with no issues up until about 2-3 months ago. The signal is now so weak and the connection is so slow (peak and off-peak times) that you can't even use. Now I am asking myself what I am paying for if I cant even use it? I have tried the online chat, called in and tried to message them on Facebook, all of which have had no solution to my problem. I have reset my router in every way possible sometimes up to 5 times a day, still with no difference in speed. I am extremely frustrated that I am paying for such horrific service.