Delivery service is terrible

Dear Woolworths I have placed and online Order for delivery. I received an text message yesterday to say my order will be delivered yesterday, and you did not do so. I called your call center to enquire about this delivery and they said it will be delivered today. I received another text message to say that my order will be delivered today and it did not happen. I then had to call your call center again today. They informed that I need to call your courier service to find out where my delivery is. Please can you keep to your delivery dates and not keep people waiting for their delivery or atleast communicate that there is an issue. This is terrible service and I honestly did not expect it from Woolworths. Thanks for wasting my time.