No Internet Connection and inefficient assistance

I called to cancel my contract more than a year ago for my tablet and was advised to take out a data contract. I took a data bundle as an upgrade for ***. The internet did not work and I called the Customer Services (CS ) desk various times since then. Last week Katlego Matlakala told me that the internet was not activated and he did it. He asked me to switch the device off, remove SIM and switch back on and was to call me back. I advised him that I had been calling the CS desk for and was not advised on the activation, he said that I lost the data not used. I called the CS desk and they ask me to switch device off and on and it still does not work. When I call the CS desk , the call gets dropped after a few minutes while I am talking to the consultant. I am paying for a service that I am not receiving for almost a year. The consultants cannot assist and do not put me through to a manager. I still do not have internet and am very frustrated. I have been a loyal customer for more than 10 years. I would like to be reimbursed for the funds/ data that I have lost due to incompetence on your staff. Cell no ***, LL ***256 email [Email Removed]