Bad service from Game BayWest P.E

I'm not happy with Game BayWest Mall in P.E I bought an air fryer from them end of June 2024 and bcoz it kept on tripping my electricity I took it back Mid July 2024 and they took it in and said they will send it for repairs but they took too long so I bought a new one from them in July 2024 and I'm happy with it now they were quiet for a while only today 28/8/24 they told me that it's ready and when I got there I told them I don't need it anymore bcoz I bought a new one from them and they told me that their manager said I must take it bcoz it's fixed and I cannot get my money back nor cash voucher ,so my question is what do I do with 2 air fryers ? The sales assistant said the manager said I must take the air fryer bcoz it's fixed