Pathetic online shopping service

I tried to purchase items using the online shopping service for the first time. It's supposed to be free if you are using it for the first time. I cancelled my order, thinking I could add more items to my basket but when I re-ordered my items, it then charged my a delivery fee. I then called Woolworths online customer services only to be told that that is the way the system is designed! I explained that I did not even have the goods delivered or anything (keeping in mind it's the first time I'm using their online service) and yet they are charging me a delivery fee. For a company like Woolworths, I think it's pathetic. They should not advertise free delivery for first time online customers if they are going to charge you for changing your mind or canceling your order!