Walmart Neighborhood Market

Regarding the store, it is a good place to shop but I have to complain about their policies. Wal-Mart offers ad price match and when there's a sale they should honor it. Lance the manager claims that each Wal-Mart has their own price match ad policy. My scenario is as follows, the ad says buy 3 cokes for the price of $7.98 with no limits. So I wanted to buy 18 in total and the cashier calls Lance so he can explain to me their store policy, which I disagree with based on the fact that Wal-Mart website does not state such restrictions at all. New policy is you can only price match quantity of 3. Why? So you don't take all their inventory; that its not fair to other shoppers. But you can buy all you want at regular price......so what's the difference? Inventory will still be depleated. I ended up buying 15 at regular price. Lance what's the point of the new policy? I still took all your inventory, then I visited another Wal-Mart (which I had plans to go to anyway) and I got a refund for the price difference. I also bought twenty more 12 packs with the price match ad with no hassle! The logic to your policy still escapes me.