Upgrade cancellation

Dear Cell C, <br> <br> Please help me to cancel an unwanted upgrade. Your call centres have been completely useless in assisting me with this issue. After numerous calls throughout the last week, and after being transferred to almost every department there is, I finally managed to get a reference number for the issue on Thursday. I was told I would be contacted within 48 hours, but nobody has yet contacted me and I actually just can't face phoning the world's worst call centre again.<br> <br> I do not want the upgrade that I have unintentionally signed up for. There are absolutely no advantages to having it - I am not getting a new phone and I am not changing my contract plan, I will get no additional free minutes or data or sms messages. All I want - and I've been upfront about this from the start - is to continue as I was on a month-to-month contract that I can cancel or upgrade whenever I please. I said as much to the pushy cell c agent who called me inquiring about an upgrade. The line was not good and somehow she somehow upgraded me anyway. So now I am tied to a 24 month contract again that I really, really don't want.<br> <br> PLEASE fix this mess for me.