Offer DetailsInstant CashBack Week - Buy Amazon.in E-Mail Gift Card For Rs.1000 & Above & Get 7.5% Instant Off From Amazon.in + Extra 2.1% Instant Cashback From GoPaisa in GoPaisa A/C. Use the promo code '75OFFEGC' at the 'Payment method' page to Avail this Offer. Limited Time Period Offer. Offer Valid For Both New & Existing Users. Instant Cashback Offer is Valid from 21st - 27th December 2015.