Vodacom Contract Cancellation

Utterly pathetic from Vodacom, I phoned to cancel an expired contract beginning January 2021 expecting it to be done and dusted by February 2021 but still there will be an Invoice end of February2021. I have called Customer Care 7 times this morning but obviously Call Volumes are High , well only after my first call, and with Technology the way it is, they already know why I am phoning ..... to cancel a contract and that they don't want .... so why answer or even phone back for that matter. Eventually I will be able to cancel and be refunded, so why not spare us the run around and cancel as you have said you would. Hissy Fit Done but my Aggression toward Vodacom will continue