Items out of stock again

We have supported Sixty 60 since its onset. But each time we order now items are not supp****. That is a pretty cool way to make extra delivery fees. For example, today sweets and G**** juice........purchased then changes status to out of stock? I don't have time to sit and watch the app especially if it's a pre order! Out of stock???? Why then if I go back and order again it let's me do that without showing the item out of stock? You want me to believe that a Checkers the size it is in Forest hill has no holding stock? This is not a once off it has occurred on the last 4 orders on two different accounts. Your app is convenient, but having to literally now go buy stuff you didn't supply..... its time to Test the Bottles app. Please don't come the excuse of choose an "alternative ", that won't work. The way the app should work..... order, choose alternatives, pay, delivery. Not order, choose alternative, watch app, ensure correct supply, delivery.