You can change your card limits after logging into the mobile app.
To change limits using the app, check out the tutorial below, which will guide you through the process. Log in and then go to the accounts view. By swiping up from the bottom edge of the screen, you will expand the card section view.
Select the card you are interested in, then press icon located on the top-right place on screen. Click on "Limits", set the preferred amounts, and confirm the operation by pressing "Save". Now you can enjoy your transactions without any issues.