Telkom mobile not delivering on promises

I did an upgrade on my cellphone contract with Telkom mobile in the beginning of January. They did not have stock of the phone I chose but eventually I received it. On the new contract I took I am supposed to receive 10GB of data for the first 3 months. I still have not received anything. I have been to the Key West branch 3 times already and they keep on promising that it will reflect with 24 to 48 hours. It doesn't happen. They also promised that the store manager will be in contact, but conveniently she does not phone me back to explain what is going on. When I call the store, I land up at a call center and they also conveniently cannot help me but promise to get the manager or Evah to contact me. I am still waiting since last week. The Customer service call center also cannot help me and that lady was so rude that I will never contact Customer service again. I want my data as promised and paid for by end of business today or I would like to cancel my contract as I cannot pay for something I haven't and obviously will not receive. I have been with telkom mobile for a couple of years now without any issues. Seems like you have dropped the ball on your customers. I am very dissatisfied!