Where is the office located?

Both have offices. There is a "layout" sign at Nike in Tanger II, and there is at least one in Tanger I. Easy to find the offices at all Tangers by either calling or asking store personnel.

Behind old navy, along that first strip of stores on your left all the way at the end

I think it is in tge back right corner - if you come in from the freeway

I think both have an office.