Many of my Brothers didn't have badges until we started having the bigs buy them for their littles' initiation. Its not that the guys don't care, its just a matter of knowing where to find it.
Kappa Sigma has a contract with Masters of Design (
www.mastersofdesign.com). 90% of the badges on the site are in inventory so you can call and order and get it before March 20 (unless its special order). You could also opt for rush delivery, or overnight.
The best thing about Masters of Design is their lifetime warranty that comes with each badge. It many cases they will repair it for free.
Good Luck, and Congrats to your boyfriend