Cell C ****py Service

My Contract recently came to an end with Cell C, I have phoned them 28.02.2018 to cancel both my contracts, numbers ********** 324 and ********** 225. I remember there was an issue for the lady to cancel the one, but was said she will do and phone me back, I remember saying, please phone me back, this never happened. Now thinking we are all adults and taking proud and responsibility in out work she would do as she said.... This never happened On 6 April, I received my new statements and Quest want, my one number was cancelled but not the other (Issue) and now all of the sudden where I use to pay around 157 it is now R256. I phoned their cancellation department and was spoke to the lady for about 3 min and was put on hold for about 50 min until Cell C cut me of, I then went to their shop in the Springs mall to phone from there as I have already spend R200 of my own airtime holding on for them who never came back I was holding on again and was told they 1st need to get the tape and them make a decision I was waiting for a reply but still nothing ****il today...... Nothing) I also gave them a bad rating on that day, which they have only came back to me 13.04.2018 about this and I told them my story and they would have phoned me back to see how they can resolve. until today nothing. I'm need this to be resolved ASAP please as I have done all from my side and Cell C is doing SQUAT Going to the store does also not help as they are apparently not able to assist, well not sure what we are paying for.......

Regards Liezel