Frustrating to work with Vodacom.

On the 28/05/2020 I paid a pre mature contract cancellation to change my contract to prepaid, Two weeks later and nothing has been done. I keep phoning Vodacom cancellations but still nothing. Vodacom did cancel my contract, because I did not get any airtime for the new month, but its still not changed to pre paid. Its very frustrating working with Vodacom,