HDFC Bank — Haven't Received cash back

I have bought my iphoneXR with hdfc bank credit card on 22/1/2020 from Rohit telecom center, uttam nagar, new delhi. As mentioned by hdfc bank (To receive cashback of 5000 within 120 days from the transactional month end) i haven’t received my cashback till now, it is more than 120 days. Hope this issue gets resolved and cashback will be credited as soon as possible.