If you have a Valid VAT number,you can follow bellow guide to exmpt VAT.Because our credit card system need to imput VAT seperatly so you need to do VAT exemp in the popup screen.

Choose “Credit Card,GooglePay,ApplePay,Paypal” payment metheod when checkout and fill you VAT number in the popup VAT area.

And then your order will be VAT exempted.