Invalid Dell service tag?

[king1]

FYI when I do the check on my laptop here which happens to be a dell latitude 5500 it does come up with some info about it

The bios page is here if you need it
https://www.dell.com/support/home/en-nz/...500-laptop

do you have the Express Service Code: 265644892XX - the search box works for that as well for me...