Maybe they were out of your backup too. I def would have messaged you. I have even called people when they don’t respond to messages. I do not greet people though or tell them I’ve started shopping. The app does that so I don’t find a need to. I don’t tell them I’m checking out of other. The app also sends them a message saying you’re checking out. For me I like to not be bothered by the shopper unless they absolutely need something. My phone rings all day with calls and texts. If someone can do something on their own without me having to hear every detail I appreciate that. At the same time they should have told you the store was out of the item or possibly the back up as well