Cancellation of contract.

I have been battling since Sunday to cancel my contract with Vodacom as my contract has come to an end. I 've been been told that my number has been migrated to the '3D department' to no surprise there in no answer in that department after holding for 30 minutes! After my failed attempts to cancel my contract I am now told that I have reached my limit to the contact center meaning you cannot help assist me with my problem, how pathetic! So you *****ing my money every month is ok! Could I qualified person who knows what they doing please contact me urgently!