
Starting today, new and existing AT&T customers who activate a new AT&T Next line with a smartphone will receive $100 credit to their bill. AT&T, like other carriers and their similar plans, offers customers a chance to purchase a new smartphone or upgrade to a new one with zero money down, no upgrade fees or activation fees. The added caveat to Next is no annual service contract. Payments for a new phone are instead broken down over a 20 or 24 month installments. Of course there's debate over whether or not these types of plans are worth it. That being said if you're looking to take advantage of this, you can do so at any AT&T retail store or online at att.com/100credit. However this offer is a limited time deal and you'll have until Sept. 30, to take advantage.
source: AT&T