Poor customer care

I have not been able to use internet because of connection issues since yesterday, I’m struggling to use WhatsApp, google, gmail etc . The network sign only says Mtn sa. Before it used to say Mtn sa lte, now there’s no lte. Called 135 5 times , and was told to switch phone off for 5 minutes and then switch back on again, I did that twice and didn’t work, and they keep telling me to call technical team, first they refuse to transfer me and then tell me to call 135, then option 2 ...3...0 . But even when I do that I still go back to the call center where I don’t get help. This sucks because I have data, airtime that I can’t use. This is totally unacceptable and this service sucks.