Tata Cliq Luxury — Regarding fraud in Mobile phone delivery

I bought a mobile phone from tata cliq on 30th October 2021...They sent me a different product (same mobile model of different colour and different IMEI number).
I thereafter received the product and I said I am ready to keep the product just I need an original invoice of my phone with my delivered phone's IMEI details...
They asked me for several processes, and I followed everything but they are clearly cheating on me and they are not providing me the original invoice..
My order ID[protected]
My registered mobile number-[protected]
My registered email- [protected]@rediffmail.com
My calling number- [protected]