Horrific Service

I recently got a Telkom contract, I was using Telkom prepaid before. I never had problems with the prepaid however the contract has been problem from the start. Firstly they didn’t debit my account due to incorrect details they loaded on the system, had to do Eft payments. Secondly for 2 months now I can’t receive calls from certain numbers and it’s affecting my work as I don’t work in a specific place daily. People can’t get hold of me at work which makes me look unprofessional. They’ve been giving me ussd codes to punch in and escalating my issue for the 2 months with no resolution. Thirdly when you call in you have to hold over 30 min before your can speak to someone. I have converted everyone close to me when I used Telkom prepaid now they decide they can’t help me with a basic service of reveiving calls? Lastly when you call the call centre they refer you to a branch when you go to a branch they refer you to a call centre?