Samsung bribing Android users with Dominos Pizza coupons20
According to the instructions that are being sent out to certain of the manufacturer's Android powered handsets, the update can be installed inside a Samsung Experience Store, or via Wi-Fi. Within 9 days of updating your phone, the coupon will arrive in the My Galaxy app.
It doesn't matter whether you install a new build of Android, or the monthly security update. Samsung wants to make sure that those using a Samsung branded Android powered handset are running the most up-to-date software, even if it means paying for 20% of your pizza at Dominos. There is one caveat, and it is a biggie. This bribe is only taking place in India at the moment. It could be that Samsung is testing the promotion in that region, with the plan on offering it in other markets like the U.S.
source: Reddit, 9to5Google