You can request a withdrawal if you’re playing on a mobile device by doing the following:
Sign in to your account
Use the menu option in the top right to navigate to the ‘My Account’ section.
Go to the ‘Your Trophies’ section and click on the ‘cashier’ button.
From the drop-down menu, choose ‘Make a withdrawal.’
Pick how much you want to withdraw or choose ‘other’ and type in the amount you would like to withdraw.