Upgrade cancellation

I have been sent from pillar to post just to cancel a contract for a phone I have not received hey. I called in to the cancellations department twice on Friday the 18th and on the first call I was told it cannot be done and the agent was very rude. (Sounded like an Indian guy). On my second call Fikile promised to have my contract cancelled by end of day but this too was not done. I called in again this morning, 21/02/2022, to notify Vodacom that I have taken up a phone by visiting a store and will not need this one but the guy who was assisting me kept going quiet on me and eventually told me his system cannot reboot and will not assist me. I have wasted airtime and time calling just to cancel the upgrade before the phone arrives and I did not get any help! If it weren't for the fact Vodacom has better network reception than other network providers I would stop doing business with them because their customer service is appalling!