Offer ends 3/31/14, and subject to change at any time. Available in select Microsoft retail stores in US (including Puerto Rico); and online. Activate a new postpaid line of wireless service and receive a $100 bill credit from AT&T or Verizon. Credit approval required; subject to carrier terms. Geographic, usage & other terms, conditions & restrictions apply, & may result in service termination. Coverage & service not available everywhere. Taxes & other monthly charges apply. Not valid on prior orders or purchases; cannot be transferred or otherwise redeemed for cash or gift cards. Offer may not be combinable with other credits or offers. Void where prohibited or restricted by law. Microsoft reserves the right to modify or discontinue offers at any time. AT&T Terms: GoPhone® not included. Must maintain svc & good standing status for 45 days to receive credit. Credit received w/in 3 bill cycles. Visit att.com/100credit for full requirements. Gen. Wireless Service Terms: Subject to Wireless Customer Agreement or applicable Business Agreement. Activation fee $36/line may apply. Early termination fee up to $325 may apply. Screen images simulated. © 2014 AT&T Intellectual Property. All rights reserved. All other marks used herein are the property of their respective owners.