If you are looking forward to authorise your airasia payment using the BigPay wallet but have not receive a push notification, kindly consider to logout-login your BigPay app and tap 'allow' on the following screen:
You may re-initiate the payment at AirAsia MOVE after completing the above and it the notification should appear!
If you need any assistance, kindly chat with us by tapping the circle on the top left of 'Home'> Get Help> Chat with us, and we are ready to assist you further.