Vodacom upgraded me without authorization

I have been trying to cancel a contract that was upgraded without my authorization on reference number ***. On Saturday 15May I went to menlyn branch to upgrade to get an IPhone 11. I was told I already have an upgrade done in May 2021 and will only be able to upgrade in 2023. I called ***/9 and I had not gotten any reference number until I called again on 16 May. I was told the reversal will be done 24-48hrs. I called again 20May and it’s been past 48hrs already and I have not received confirmation of the reversal. Even the consultant and can’t give me the date of the cancellation. I have been with Vodacom for over 15 years, I must say this is by far the worst experience and ***** I have experienced. I often hear stories about contracts being upgraded or people getting signed up for phones they never authorized for. I never in a million years thought it would happen to me.It’s like Vodacom is using a delay tactic so I can forget about the upgrade or something. The more Vodacom delays I don’t think I Will be getting a new cellphone contract with Vodacom I will try other cellphone providers.