Cancellation and Upgrade

Service received is not great! I called on 1 Feb to cancel my contract. I was given a deal by retentions to which I accepted. Before the deal concluded the call got cut off. I subsequently called 3 times to sort out. Now the upgrade is captured incorrectly and instead of a month to month contract I’m not sure what was loaded. To reverse it takes 7 business days and I have no proof of my call being logged. All I now want is this to be reversed the contract cancelled abs I go to prepaid. Dealing with vodacom is an utter nightmare!!!!! Total disregard and don’t care attitude from all consultants I engaged with. I hold on for 15 min to 30min a time with no positive end result.