Disconnecting from any game servers

For 3 weeks now or maybe more I have been trying to game in peace but I constantly get disconnected. Either my ping jumps up to 10 000 or my packet loss is 50%. I can not play any games at all of which a few examples are Diablo III, League of Legends, Battlefield 4, World of Warcraft and Counter Strike - Global Offensive. Local or international servers doesn't matter, I still get disconnected from both. I have tried the internet apn as well as myMTN. I even took an Afrihost package and used the afrihost apn but it all results in the same issues. Can you please look into this matter because this has been going on for way too long now with what seems to be no efford done to resolve this issue. I have used multiple devices and sim cards to test if the problem was on my side but it is not. My signal strength is the best it could be at -59dbm and I do have a 4G connection. My downloads are fine and working but every single time I try to play a game I experience these issues. My friends are also experiencing the same issues so it has nothing to do with my computer and so on but with MTN themselves. Please look into this matter.