HDFC Bank — iphone 11 purchase through hdfc cc - cash back not received

I have bought my iphone11 with hdfc bank debit card on 02/02/2020 in imagine store, kolkata. As mentioned by hdfc bank (To receive cashback of 6000 within 120 days from the transactional month end) i haven’t received my cashback till now, it is more than 120 days. I have asked in iphone store, they said to check with bank. Hope this issue gets resolved and cashback will be credited as soon as possible.

Pls contact me at +[protected] for card information.