Reliance Digital — reliance digital cashback not received for laptop purchase

Address:

Reliance digital, Bus Stand, First Floor , KSRTC Suburaban, Bangalore Nilgiri Rd, Mysuru, Karnataka 570001

Reliance digital — cashback not received


I purchased a dell laptop from reliance digital on 27th october, 2019. They offered us 10% cash back with hdfc card payment.
We paid with hdfc card.
They made the transaction at their end and assured us to credit the cash back within 90 days.
Its already 6months still the cashback is not received.