Vodacom phone shop

I called Vodacom to buy a phone,it was online service.I was given the phone that I don't like,but the fact that I lost my phone and I'm desperate to get one immediately I took it because that guys told me that I only qualify for that,I asked how so,he said this is my 3rd contract so that's the only offer.He also added that if I don't want it I can take it back,so I took the phone it was Hisense h50 zoom.i called Vodacom and I told them I don't want it anymore they said they will pick it up it was on the 10 of march 2022 even now they haven't picked up the phone and I'm struggling with this phone I can't even apply for another phone because they made me wait I don't have a phone, Please help me out. Lebohang