Being charged for part month charges 3 months after taking the mobile contract

<p> I agreed to 2 tablet contracts with Telkom in March. The Sales Lady did not even advise me that I would be paying double the amounts on the first bill due to part month charges so at the end of March Telkom debited some money. I received a sms in April stating I need to make payment or the account will be barred. I called the Telkom Customer Services line and the lady advised me of the part month charges and that if I make payment for the amount she advised me of then I will pay the agreed subscription amount going forward. I did make a bank transfer. Telkom did not debit me on the last day of the month for April but instead send me a sms stating that I owe triple the subscription amount. I called the Customer Services Line again and the agent advised me that I still owe money from the part month charges, he advised me of the amount I would need to pay and if I make that payment the account is up to date and I will pay the subscribed amount going forward, I was once again assured and did the bank transfer. I have now been debited in the middle of May for double the tablet subscription which is utter nonsense. Telkom have taken money out of my account on any day in the month which is *****. Why is the Customer Services so terrible, I have never come across a telecommunications company with absolutely terrible service. Every time I call the Customer Services line the agents assure me that the issue is resolved but they keep asking and taking and taking more money from me without my consent. I even sent 2 emails to the Telkom Accounts email address regarding this issue and have received no contact back with a resolution. The agents need to be uns****ed in the way they do their jobs and handle customers as I have been **** to by both agents. Please be aware of the companies disgusting way of helping customers.</p>