Can anyone of the U4021QW owners check how much the Dell service extension to 5 years would cost? According to Dell I have to contact the technical support, but for that I need a service tag of the product and I don't have it yet, super clever endless loop... Here you could check the price of the warranty extension by means of a service tag: https://www.dell.com/support/incidents-online/de-ch/email/extend-warranty Thanks for your support!