VERY BAD SERVICE

I have two contracts with Vodacom and i called them to cancel one contract that had expired for more one year and they offered me a 75% save for me not to cancel the contract, they consultant to me that if i take the new 75% special and decide to cancel with 14 days, i must call them and cancel. I took the offer and reviewed my decision to continue with the cancellation of the contract but now when i call them they are always taking me from pillar to post and they don't want to help me. i am exposing their bad service as i have been a very good client to them. i spent more that R2000 on a monthly basis and now they treat me like dirt. I am cancelling all my contracts with them and i will go to other networks that will offer me better deals. they are very ***********.