Unfair, misrepresentation and inconvenience by the stotre

I bought a phone for cash on Friday the 18/06/2021 at Vodashop in Middelburg Mall, when setting it up i noticed that there was no fingerprint sensor. i returned it to the shop on Sunday the 20/06/2021, of which they send it for repair. Yesterday i received an sms stating that i must go to the shop for a replacement phone. when i called them, I was told they have a different colour from the 1 i bought. Vodaworld consultant told me straight on 20/06/2021 that the phone has been discontinued, there is no way it can be replaced. Now i want my refund to go buy the phone of my choice at the place of my choice, they are refusing. May you please intervene.