Vodacom getting me into debt covid time *****ing from me.

I totally disgusted with Vodacom with poor service *****ing from me as it's done with many subscribers. I made several calls to cancel my debit orders to switch to manual payments but their back office refused. They are R100 to my Vodacom account when it does not go off and yet I am paying manually.The consultants never same to help. They say they cannot help.I am now sitting with a high bill. No one should take up a contract with vodocom!