Terrible customer service

Honestly how long does it take to cancel one contract so you can change to another one. It took one whole month to cancel current contract and now another month has gone by still waiting. First was told I can't use my current number would have to wait 6 months to reuse then I was told that my SIM card which was meant to now be on prepaid is still on contract they need to sort that out before I can go back on contract with same number. This is ridiculous honestly what a big joke Vodacom. No one at Vodacom seems to know what the procedure to cancel one contract and change to another is. We have cancelled and decided to go elsewhere