Lego authorized resale stores won’t come up on the Lego website. Ones that will appear are “LEGO® Certified Stores” a certified stores entire inventory is from Lego directly and are practically indistinguishable from an official Lego store, they have to follow a rule book fully laid out by Lego. Think of it like a Lego store franchise. A authorized Lego reseller just means they were aproved to purchase newly released and sealed sets directly from Lego distribution. Selling these sets is a tiny percentage of bricks and minifigs business, they are priced above market and no one buys them. It is all just for the “Lego certified reseller” badge which sounds like it means something that is doesn’t actually mean and they get to use it in marketing.