DATA CONTRACT RENEWAL

I went to cell c gateway branch to request them to terminate this data contract that I apparently had renewed without my knowledge with them. they called the call centre contracts department on my behalf and I spoke to the consultant who promised that she had received my request for termination of contract and that their systems will be updated in order to show that I had cancelled the contract.<br> <br> ever since then I've been getting between 6 to 8 calls a day from their call centre offering me better data packages and an upgrade. <br> <br> CAN SOMEONE PLEASE HELP ME PUT A STOP TO THIS. I DONT WANT AN UPGRADE!! I WANT THESE PEOPLE TO STOP CALLING ME!!<br> <br> PLEASE<br> <br>