Earlier today we told you about a great deal Best Buy currently has going on allowing you to essentially grab a Moto Z Droid on Verizon for free. But what if you don't like Verizon and would prefer to receive a free iPhone SE instead? Well, Best Buy will deliver in this case too. You just need to be OK with having Sprint as your carrier. You must either add two lines, or add one and have another that's eligible for upgrade. The new lines must be on an Unlimited Freedom or Best Buy One plan, by the way. Then when you purchase or lease an iPhone 7 or iPhone 7 Plus, you will get a free iPhone...
Source: http://www.gsmarena.com/get_a_free_iphone_se_when_you_buy_an_iphone_7_or_iphone_7_plus_on_sprint-news-22861.php