E Vouchers are thermal receipts distributed via retailers' Prepay terminals. After receiving payment from a customer, retail staff print a thermal voucher for the customer. Printed onto the voucher are secret redemption codes (PINs) to activate the product, along with the product or provider's logo, any expiry dates, and the transaction tracking information, as well the product's instructions, terms and conditions, and customer service numbers. PINs are generated in bulk by product suppliers, then encrypted and sent to Prepay. Prepay receives these PINs on consignment and manages the electronic distribution to retailers and billing once sales are made.