Vodacom Fails to Cancel my Contract that ended

I have been trying since July to cancel my agreement. I was told I could only cancel the agreement 30days before the end date. (Contract Ends 1 October 2019) So I called end of August and they tell me I must call on the first of September. I then do so and am told I can only cancel the agreement the 1st of October. So I did this... and then the contract was not cancelled. I called again on the 11th of November when I saw my bill and received and SMS that my Quotation has been processed... This makes no sense at all!!!! I sent emails on Monday but have not received any feedback that wasn't a robot...