Elite Mobile don't identify themselves as Elite but as Vodacom

I upgraded in December 2020, when I called Vodacom I initially wanted to put notice on my account and move to another company. I was transferred to the retention department who offered me a great deal on an iPhone 12 Pro, I took it and only later did I see they put my contract on 36 months and not 24 which I did not agree to on the upgrade call. I called Vodacom only to find out they didn't upgrade me but a third party called Elite mobile upgraded me and I need to contact them. This was very unsettling as I thought I was Vodacom's client but it looks as if Elite Mobile is my provider. I called Elite Mobile who said the query will take 10 working days to resolve. It has been over a month with no feedback except when I call Vodacom who call Elite Mobile who say they will pass onto a team leader to call me back, which they never do and I called back again today while on hold for 15 minutes and Elite Mobile gave me the same story...no feedback and they will call me back. Ref numbers are *** and ***