: Both devices had to be from the same manufacturer; for example, you could not buy a Samsung Galaxy S7 and get a free Key Requirements & "Catches"
Participating in these deals often involved several strict conditions as noted by Yahoo News and BGR : Has anyone gotten a new free phone from AT&T? - Facebook
The BOGO offer required customers to purchase both phones on an or AT&T Next Every Year installment plan.
: The credits generally totaled , covering the full retail price of a base 32GB
were structured as a long-term commitment rather than an instant giveaway. These deals typically ran between 2016 and 2017, offering a second 32GB for "free" through a series of monthly bill credits. How the Deal Worked
: You paid the full monthly installment for both phones initially. After about three billing cycles, AT&T would begin applying a monthly credit (up to $21.67 or $27.09 depending on the plan) to offset the cost of the second device. Total Credit Value
Historically, AT&T's "Buy One, Get One Free" (BOGO) promotions for the Go to product viewer dialog for this item.