AT&T is offering a buy one get one offer + $300 reward card for iPhone XS Max with purchase of a new line. For the BOGO offer, the second phone becomes free after you have received the credits in your account for over 30 months. The credits will be sent to your account within 3 billing cycles. Redemption is required for the reward card. The offer only applies to online order. Plus, if you also add an Apple Watch to your shopping cart, you will receive a $60 credit in your account. The $60 credits will be sent to your account over 2 months within 3 billing cycles.