Home Help & Support Other frequently Asked Questions How do I unsubscribe from emails? If you have received a marketing email from Quadient and wish to unsubscribe, please click on 'Unsubscribe' at the bottom of the email or click here. What is your company VAT number? For Quadient Ireland Ltd (service, consumables) the VAT number is 4810684L. How can I get in contact with you? Click here to get in touch with us. MyQuadient MyQuadient Sign up or log back in to your customer portal. Sign In Contact Us Contact Us Contact Us