How should I enter my credit card number? March 21, 2022 07:27 Updated Please enter only the 16-digit card number, without spaces. Related articles What are the payment options available to me? How do I make payment using GrabPay? Can I change my pick up option once the order is placed? How do I place an advance order? I do not have a credit / debit card. So how am I going to order on the app or web?