Voucher Purchase Voucher Purchase Voucher code will be sent to your email Id instantly on successful order completion. Voucher Code can be accessed on your Zingoy account as well. Redeemable on select stores. Show this code to the cashier at the time of billing to use your Instant Voucher to make payment. Cashback will be tracked instantly and validated within 3 hours. You cannot cancel/refund a voucher once it has been issued.