Reliance Digital — Cashback & not helping

Address:

MANI SQUARE MALL 164/1, MANICKTALA MAIN ROAD OFF EM BYPASS , KOLKATA 700054

Hello sir,
myself bikram sarkar, phone number [protected]

I bought an iPhone 13 from Reliance Digital. I was told that if I pay with sbi credit card, I will get cashback of Rs. 6000 within 90 days. I bought the phone on 13/03/2022. Today is 25/06/2022. I haven't received any cashback yet. Reliance Digital is not helping me either.

MANI SQUARE MALL 164/1, MANICKTALA MAIN ROAD OFF EM BYPASS, KOLKATA 700054 . contact number[protected]/31/32/34