online shopping order cancelled

I purchased online at Woolworths last week Tuesday a cream white fleece gown, I paid for and was told it would be delivered on Saturday between 10am and 1pm, I later received a call from a guy saying that my order has been cancelled as the item was out of stock, my question to him was HOW? Because I paid and I am now waiting , I called in and spoke to Labeeqa and she explained that it might have been that it is out of stock in the shops nearby where it was going to be delivered, I asked her to check which shops have it as I am desperate for this gown she said she would send an enquiry through to Customer care as they would know. Today I called and spoke to Daylene at Customer care as I wanted to complain about this service as this has been dragging since last week she transferred me to online again, I spoke to Sello or Snalo not sure of the name exactly but she said she would call me back when I requested to speak to a Manager, till now I have nto been assisted, I do not have a gown which I was supposed to have by tomorrow and my money has not been returned back, infact I do not want the money back I NEED the gown and someone to call me and assure me that I will get it ASAP