Vodacom bad service

I would like to complain about the service of vodacom chatz in Tygervalley shopping mall Capetown. I was in their store on Tuesday the 19th November 2024, i claimed for A24 and my insurance approved me with the 30% of the value of the device. A24 is no longer available and the consultant said A25 will be expensive and i should look for a different one, Oppo A40 was advised by him and i told him i am not fami**** with the brand so i don't want to regret he then said its way better than the one i had and its new, he said all the good things about it and i wanted to see the sample and it was not available, well we proceeded with the Oppo and the minute i saw it i told him i don't like and he said i will get used, he said i should sign because the box is already opened and he can not return it.

So i do not like the device i called them and said i should speak with the manager and i did today and the manager said No, i asked about the 7 day period that you said the customer can return the device and he said only if there is something wrong i asked what if i am not happy? what is he going to do with the consultant that did not explain everything to me. i am so unhappy with the device and i would be so glad if you can attend to my complaint ASAP before the 7 days period.