Amazon India — Cashback didn't receive

Address:	560030
Website:	www.amazon.in

I have purchased moto g5, on that day offer was there with details as below
1. Amazon pay balance of 550rs cashback for amazon prime members
2. 1000rs cashback will be credited by june 6th i[censored]se hdfc card for payment

But i got amazon pay balance 500rs, i called customer care multiple time for hdfc cashback but they not ready to provide cash back and asking for bank statement. To0 provide the cash back.

Please help me out in this.

Order number:[protected]
Order date: 05-apr-2017