Bad service and out of stock item

I have purchased a Coldair fan Order Number: ***on the 20th of November 2015 and I was suppose to receive my item this week. To my suprise I received an e-mail TODAY stating that my order has been cancelled because they are out of stock. really? after 13 days only now you realize that you don't have stock and you telling me this the same week you suppose to deliver my parcel? Really if you dealing with different supplier wouldn't it be nice to have proper stock inventory management system, to track what is available and not available with your supplier before putting it on your website and worse, it took you 13 days to alert me about this, ask Zando how they actually do it. what **** me off, If I wouldve known in time, I wouldve actually got a better deal last week with the black friday sale but I know you care less. To make matter worse when I called in, lady named Stacey was so rude to me and told me she will not be able to transfer my call to the buying department, and she had no appetite to assist me with the situation. I had to call again to find someone to assist. poor service, poor stock management, I refuse to buy anything from you again, this is the last time