How do I make payment using GrabPay? May 06, 2022 08:21 Updated You will need to activate the GrabPay icon on the Grab App and scan the GrabPay QR code on the scanner. Related articles If I do not have a Grab App can I still make payment using GrabPay? What payment mode do McDelivery accept? I would like to buy McDonald’s® gift vouchers, how and where can I buy them from? I’ve experienced an issue and want a refund. How can I get a refund? What are the accepted payment methods in your restaurant?