Flipkart — Duplicate apple adapter delivered instead of original product

Address:

Gurgaon

I ordered apple adapter on september 22nd 2022, and got the product delivered on 25th September.

When i tried to check authenticity of the product on apple website the serial number mentioned on adapter was not recognised by apple.

Now when I raise a complaint with Flipkart they mention that the product is under no return policy.

I don't understand what to do here as I paid for orginal product but Flipkart delivered duplicate item to me.