HDFC Bank — iphone 11 / cashback not received

Hello team, hi i have purchased iphone 11 from reliance digital on 11th of january 2020. I was supposed to get inr6000 cash back within 90 days. But no cash back has been credited in my account till now. Kindly look into this matter and resolve. Loan ref no: [protected]

I have also raised complaint regarding the same in [protected]@hdfcbank.com. But still i have not got any response from bank official or via mail.

Already more than 120 days have past but still didn’t got my casback.