When Blaze summoned me to learn about the team up box and I saw his items it was only allowed if you had certain team badges. I've helped hundreds of teams and never got a badge of any sort. I'm sick of seeing people walking around with team leader and team manager badges when I've probably helped out more teams than them and never got a badge.
as stated in another post before you need to have used the kiosk in Olde Town in order for you to get a badge if ya just go to the area and quest with people then this does not work. Use the kiosk.
