Terrible service from telkom and siyabonga sithole

I have been with telkom for over 8 years. I took my new cell contract with them in August 2018 for a hauwei P20. I was to get 10gb free data for the 1st 3 months. 1st Month I was billed 1000 more for my data usage. I called telkom end August to find out what is happening. Spoke to agents and received no joy. The following month received bill 130 more for data yet I did not receive my free data. My contract was to be capped at my contract limit. I called the call center on 8th of October. Held on for 48min before a manager could make himself available to speak to me. I spoke to siyabonga sithole who advised me that he will follow up n give me feedback the next day latest at 7pm. Today is the 13th October no call as yet to resolve my issue. This is not the service I want to pay for.