7-Eleven xin chào! The first 7-Eleven store in Viet Nam opens in 2017, making Viet Nam the 19th country to host the world's largest convenience store chain. Download 7REWARDS app and start enjoying these privileges! 1. Exchange points for discounts. Collecting points when shopping. Exchange voucher and discounts that are tailored for you. 2. 7now - 30 minutes delivery.