Upgrade contract

I am not happy with the service my mum got from Vodacom. My mom did an upgrade on the 1st of November 2022 and she was helped by one lady who did an upgrade of IPhone 13 pro 128 and the lady upgraded us on the wrong package which she did not even tell my mum. Our contract package has always been prepaid but she upgraded us on an open line. Then she wrongfully upgraded my mum’s other number which she upgraded it to an open line and my mum specifically asked her not to upgrade that number and only upgrade the main number she is using.

Then she told us that IPhone 13 pro is in stock then the following day we got an sms saying it is out of stock. We waited for a week then called Vodacom only to be told that IPhone 13 pro is absolute. Then we took another 1phone 13 128 on the 11 . We accepted the offer then we have not received any call to confirm the offer. It’s been 3 weeks now trying to upgrade and get a phone.

Now we want to cancel all the contract then go to another company because this is unacceptable. Since 2008 till now , every 2 years we upgrade but never experienced this.

Now we are told stories when we want to cancel