HDFC Bank — Cashback

I was supposed to receive the cashback of 6000 inr for porchasing iphone 11. I purchased the item on[protected] and as per the policy of bank cashback was supposed to be credited within 120 days from the last day of transactional month. Its been 125 days now and still i haven’t received the cashback. This is not the kind of service we expect from such a reputed bank.