We check VAT numbers with the Taxation and Customs Union when payment is made. Please double-check your VAT number to make sure it's entered correctly.
If your number's showing as invalid you can check its validity for this type of transaction directly on the Taxation and Customs Union site.
If it is valid there, we may be having problems with our checking system so please either wait and try again later or place the order, paying the VAT, and let us know. We'll make sure the VAT is refunded afterwards if we can verify the number is valid.
If your number is showing as invalid on the Taxation and Customs Union site you will need to contact your tax administration to find out why.