Telkom internet coverage extremely poor

Telkom is by far the worst telecommunications company I have been billed for LTE internet that never works it cuts of continously . Telkom had changed my packages several times but still can't find proper coverage I am in a 4G area but telkom still has major coverage issues . I have MTN that doesn't have issues with coverage but telkom continously has issues but they still charging me every month for a service they not providing , I called several different departments at telkom but they customer service is extremely poor.