The Call centre keeps Calling Me

I have two Contracts with Cell C, One of them is up for renewal.<br> I called in to the Call centre to upgrade and a the lady advised me that I can keep it on a month to month basis as it is just a data line. I am happy with the terms of this agreement.<br> <br> Since then, I have been called non stop by 084 154 being asked to upgrade. This is completely unacceptable, especially since I have let them know on numerous occasions that I do not want to upgrade, I would like to keep the line on a month to month.<br> <br> One of the consultants even went as far as to lie to me- saying that the month to month will only apply for 3 months and my contract will be cancelled after this period. If this is the case I would like management to please call me and explain this process as I am completely unaware of this and do not appreciate being called and **** to so that consultants can make their quota.<br> <br> I am happy with my past service and cell c package, but I do not want to be harassed.<br>