Bad online shopping experience

As a woolworths loyal customers, i decided to try their online shopping. the first order i made, i was not made aware of the unavailability of the item i order. on the day of delivery only one item was delivered, when i inquired with the courier service i was told to contact the customer service, afterwhich i was told the item was out of stock. The second time when i made an order, i got an email to say my items will be delivered late. I made an effort to be available on that day and the items never got delivered. I had to make follow up with the customer service and they indicated that it will be delivered today. My plea to woolworths is, if they cannot provide good online service they need to stop as this is ****ing off loyal customers like me.