Ok, no problem. We suggest you do the following (in this order): 1. Contact your bank. It could be that they are experiencing issues from their end. 2. Are you using an international card? If so, please try using a UAE card. 3. Update your card details in the app. For more information on how to update your card details in the app, head back to the Help Centre and search for 'how do I change my credit card'.