A Value Added Tax identification number (VAT) is an identifier used in the European Union for value added tax purposes. DIDWW applies Value Added Tax for companies or individual customers if a valid company VAT number is not identified in the customer’s account. The tax rate applied is dependent on the EU residence of the account holder . To change your VAT details, contact the DIDWW Billing Department at

The Tax ID company identification number is used for tax purposes. The company Tax ID is specified in the “Personal” section on customer’s account. Invoices issued to the company will include the company Tax ID.