Contract cancellation

On the 3rd of October I requested to cancel my contract, but the consultant did not do it properly but he assured me that he cancelled it, but I have been receiving their airtime. The 2nd consultant assured me that he finally managed to cancel the contract as the first consultant did not do it properly. Now today I have been charged the amount of R347.99 for my contract whereas the 3rd consultant told me that he fixed it on Sunday. I am soooo disappointed and angry. I want my money back. Vodacom is the biggest ******* ever.