VAT-ID is not valid VIES system cannot handle the requests Forums › EU/UK VAT Manager for WooCommerce › VAT-ID is not valid VIES system cannot handle the requests Support forum for the WooCommerce EU & UK VAT Numbers Validation. This topic has 0 replies, 1 voice, and was last updated 1 year, 4 months ago by Chris Van der Aa. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In