The AT&T "Buy One, Get One" (BOGO) offer for the Go to product viewer dialog for this item.
AT&T Offering Buy One, Get One Free Deal for iPhone X | Shacknews
: The credits were spread out over the entire length of the installment agreement (24 or 30 months). att buy one get one iphone x
: If you canceled the service or paid off the device early, the remaining bill credits would stop, and the full remaining balance became due. Model Flexibility
: You were responsible for paying the full sales tax for both devices at the time of purchase. How the "Free" Credit Worked The AT&T "Buy One, Get One" (BOGO) offer
The second phone wasn't free immediately at the point of sale. Instead, the discount was applied as :
: Credits usually started after three billing cycles . Model Flexibility : You were responsible for paying
: Both devices had to be purchased through AT&T Next (30 months) or AT&T Next Every Year (24 months).