Unstable network with Poor network speed

My network as of late has been highly unstable. I have been calling the call centre and logging cases since the beginning of October after having bearing the poor network for some time. The network just goes off on me while connected and after a few seconds to minutes I am reconnected again. This cycle goes on the entire day and i can never be online constantly. After logging a case i get a call where i am informed that the towers are unstable in my area. This has been going on for way too long and i am not receiving any help from the technicians as we have tried to reset the sim card settings as well as the router settings among other things we have tried with the technicians. This is a huge inconvenience as I can not get anything done without being interrupted by my network. If it is a tower issue i dont understand how that is the clients problem as when it is month end I pay the full price for a barely mediocre service. The speed that was promised to me is 10mbps upload and download however my speed is forever below the average of 5, Meaning i am not getting my monies worth as promised! In most cases my speed keeps changing drastically within the same minute or 3-5 minutes later. At 13:00 my speed was 5.9; 13:01 speed 7.0; 13:47 speed 2.9 and speed at 13:50 4.3. In some other instances, the smae thing happens with speeds ranging between 0.8 and 4 mbps. I am also tired of being told to switch off my router and on again everytime my network goes off! This is highly inconvenient and given that the network just randomly goes off multiple times within an hour i cannot keep switching my router off. I am totally unhappy with the unstable network and poor network speeds i am experiencing! I have tried to get assistance and it seems i am failing. I have been using Telkom for years now however they are seemingly dropping the ball!