over charging and lack of information

I have been a Telkom client for the past 6 years and never experienced such poor client/ customer service. For the past two months I have had several issues with Telkom mobile. 2 months back I took a new contract and requested that my current number be activated on the contract, that was not done I received a new number and was told I must do a number change. After calling the call centre several times and agents telling me that they have escalate the matter, I will receive a call from back office within 72 working hours. That never happened I had to call back again after a week 25 times before my issue was resolved. Not all agents are horrible, Paul Maphoto assisted me and ensured that the issue was resolved. I was not happy with the time it took. After all of this was resolved Telkom mobile blocked my phone from receiving and making calls, again I had to call the call centre and again the matter was escalated, and I was told I will receive a call before close of business, that never happened, I had to call again a day later, went through 6 agents who had no knowledge of what they were doing. Finally the issue was resolved. 10 October 2017 Boom I receive a statement, to my surprise the statement includes my first contract. I took up a Smart OneRate Deal of which I receive 5gig monthly and been paying R99 for the past 1 year 10 months, yoh now the statement has an extra R49 only God now’s for what. On my second contract that I took recently I was advised that I would pay 139 for 11gig stating on 25 October, I used about R70 for voice calls so according to my calculations I should pay R209 but guess what I am supposed to pay 340, when I called the call centre again I was told it for Device Subscription Fee of which this was never explained to me when I initially took the contract. So its an extra R100 only Telkom mobile knows for what. Telkom mobile please do take your contact centre agents for product training and give them information to share with clients. I am still waiting for my statement issue to be resolved.