Bad customer service

I never came across this bad customer service like telkom.They are the worst to reach and no one is able to assist you.Im disappointed in their customer service seeing that they are according to them one of the leading networks in South Africa.They don't care about you spending hours on the phone trying to get hold of them and the airtime you waist. I contacted them a few times and their phones just rang for long or there's no one to assist I did sent few emails to them also regarding my account but they also didn't respond.Im suppose to only pay an amount of 199 monthly but they sometimes have extra charges for what I am unsure.I also asked them if I can rather pay my account in cash but no response.Your time is not that valuable as theirs