Flipkart — Realme GT2 Pro

I bought a Realme GT2 Pro smartphone alongside which an offer was attached to get Realme Watch S for free..
The watch was due after 15 days but its been 25 days almost and still the offer hasn't been provided to me . It's nowhere reflecting in my Flipkart account as well..
Repeated follow-ups with Flipkart support has been a waste of time and effort. I have reminded them more than 20 times now through calls and tweets but still no resolution is provided. This is extremely disappointing and fraudulent service which should be duly dealt and penalty should be imposed to harass customers with frauds offers and even worst customer services.