Vodacom cancellations

I phoned Vodacom to cancel 3 contracts the lady assured me that all 3 contracts are cancelled but then i found out they only cancelled one number. It is such a frustration to cancel unused Vodacom contracts. They are quick when you want to open a contract but when you want to cancel a contract it is just impossible. They are *****ing our money legally. ********** there supposed cancelation helpline is an absolute joke.The numbers must be prepaid numbers asap.