Bad service

I am struggling to get my contract cancelled. I don't have a cell c sim and gets charged for calling. A very rude consultant called me by the name of Letlhogomolo Mautwhna and when i asked her to put me through to retentions department. She gave me an attitude and told me that it is not possible, i asked for the team leader she told me they are on lunch. She was not willing to even go the extra mile for me. when i asked her to get someone to call me she is telling me that she can't do it and i must either call or go into the branch. CAN I PLEASE GET MY THINGS CANCELLED - I DON'T WANT ANYTHING TO DO WITH CELL C!!!!!!!!! YOU CAN CALL ME ON ***.