Online grocery delivery failure.

On the 2nd of December (a Monday), I placed a grocery order online for next day delivery (Tuesday). I arranged to be home during the delivery window which was between 2 and 5 pm. After 5 I got an email to say there is a 1 to 2-hour delay on the delivery. I waited some more and the delivery still did not arrive. On Friday I was informed by my building manager that a delivery came for me the day before (Thursday). I was not home because I was not informed to expect this delivery on Thursday. The delivery was returned. I eventually got through to someone to rearrange delivery. I was told it would arrive that same day between 6 and 8 pm. I canceled my plans that night to wait for this delivery that still didn't arrive. On the 10th, one week after the delivery was originally supposed to arrive. I got an email saying "We attempted to deliver your order, however we were unsuccessful and your order has therefore been returned to the store. I rep**** to the email saying that because the delivery is a week overdue I would like a refund. I got no response. Then we contacted Woolworths on facebook they responded saying that they sent an email and didn't get a response. We then informed them that we did respond to the email but haven't heard anything back and then Woolworths didn't respond to that message either. Its been two weeks now. I still do not have my groceries or a refund.