Can I get a refund to my GrabPay wallet? June 26, 2020 06:50 Updated All refunds, if any, are only given in terms of Fave Cashback. Cashback from a purchase refund will be valid for 3 months. Related articles I want to cancel my voucher. Can I get a refund? How do I disconnect my GrabPay wallet from Fave? 3. Purchasing and Redemption How long is my Fave cashback valid for? How can I use GrabPay on Fave?