https://www.cnet.com/news/cyber-monday-2018-phone-deals-nov-28-free-lg-v40-150-moto-g6-500-lg-tv-free/

T-mobile will give you an LG V40 or LG G7 when you activate two lines of service, and trade in an eligible device (see below). You'll see the discount in the form of 24 or 36 monthly bill credits. The eligible phones include:

How does $250 off an unlocked LG V40 sound to you? You'll need to pick up the 64GB model in black, for $700 (retail price is $950), and activate the phone with Verizon or Sprint.