1. Please check with your bank as they might have blocked the transaction from pushing through.
2. If you have another card (VISA/ Mastercard credit, debit, or prepaid) which can be used for the booking, please try removing the current card and add the different card. Select it by ticking the circle next to it before trying to book again.
If you encounter the same issue, please hit the support button for us to assist you with it.