Get 25% cashback upto Rs 250 AMAZON pay offer. Amazon Pay cashback is applicable for first time Amazon Pay users can be availed only once. Minimum amount of Rs 1000 should be paid through HDFC card to avail cashback. Cashback amount shall be calculated on the net paid amount by the customer using HDFC Card. Cashback to be credited 90 days after closure of calendar month. Offer valid ONLY for bus ticket bookings done on or before 30th September, 2017.