Amazon India — Dell latitude E7470

I ordered a dell latitude E7480 on 5 October 2022 and I have received a different model. The product has the policy to return it within seven days and I have contacted customer support many times But my problem hasn’t been resolved. I’m very frustrated with the customer support of Amazon. I have tried many times since then but there is no response now I want a refund of my product and I don’t want to replace it with another because I am very disappointed with the customer support.