Just got the coupon pushed through the app, 30% off all Nike Factory and Clearance stores 2/20-2/24
this is in store only, at Nike Factory and Nike Clearance stores, not online.
coupon appears as a message in your inbox in the Nike+ app
edit 2: app links
if you don't have the coupon, try uninstalling and reinstalling your app; conversely try chatting with a nike rep and asking for one: