HDFC Bank — Iphone 11 credit card cashback not received

I have purchased i phone 11 on 29th july 2020 from apple store through my HDFC credit card and i was told that i will receive cashback in 120 days. It's more than 120 days now and i have seen people waiting from 6 months for cashback but not yet received. So please clear that cash back will be credited back to my credit card or not . Because it seems you are just fooling the customers and not giving the cash back on your time period 120 days.