Promising Sixty60 App Disappoints

I was using the Checkers Sixty60 app quite frequently last year with great service. This year, however, I have not been happy. I have requested that if there is no item in stock, I am contacted. Many of the items ordered are not in stock & I am also not given the option to replace, which defeats the point of ordering especially due to the fact that not many items are ordered through this service. There is also no number you can call to query your order. I have placed an order before 9am this morning in time for breakfast, and have been notified that the order is delayed to 11am. Further to this, three of the items I ordered are not in stock and there is no option to order something else in its place.

Please deliver a service that actually works, or remove it from your product offering.