Poor Service from Online.

I ordered a xbox online which was supposed to be delivered on the 11th Oct needed as a present to the 29th Oct. Get a call on the 8th to say they dont have stock only available in November 12th which i was not happy about. Then i get a call to say they made a mistake and it will be delivered on the 21Oct which was ok with me. Then on the 8th get an email canceling my order.Worst service ever. False advertising.