Poor Service

I called Vodacom on the 4 or 5 April 2021 to cancel my contract because it was ending on the 5 April 2021 the said my cancelation has been on the 1 May 2021 I called again to follow up on my cancelation the 2nd agent informed me my cancelation hasn't been processed and that she will find out who I spoke to and lay a complaint and she will process the cancelation and make sure my account gets credited if it gets debited I called again for 3rd time 2 weeks back another agent informed again the very same thing the 2nd agent informed me I called again today the 4 agent telling me she has processed my cancelation it will only be effective on the 30 June and my account was credited which was not suppose because I called in the beginning of April to cancel the number m query is *** my main number is ***