I've been using the Giant Foods app for my groceries without a hitch until recently. On April 17, I tried to order, but the app had some tech issues. Customer service redirected me to Instacart, so I placed my order there. I waited by my door the whole delivery window, but nothing showed up. Tried again the next day through Giant Foods, and thankfully, everything arrived fine. But then, checking my bank account, I saw Instacart charged me for the non-existent delivery. After multiple calls to Instacart, they refused to refund me without any explanation. Now I'm disputing the charge through my bank and planning to lodge a complaint with Giant Foods. This whole fiasco was frustrating beyond belief!