You can add or update your VAT number in your Accounts page in the Billing Details section at any time. In order for VAT charges to be removed from your future invoices, your VAT number must be from the same country as your credit card or PayPal account.
Please note that we can’t retroactively change invoices, so your VAT number can only be applied to future charges.
You can verify that your VAT number is valid here.
If you have any issues adding or updating your VAT number, please contact us at firstname.lastname@example.org.