Service tag is on the box as well, and on the packing slip. And honestly I don’t see why you are complaining. Especially having worked as a support technician you should know there is a string of things you have to ask. The service tag is important to them especially if you are like our company and buy thousands of PC’s from them, there are so many different variations of the same PC and they are not going to send you one that you didn’t pay for.