Three times in the past few weeks I've been looking up fares everywhere I can, and Orbitz had the cheapest, fo Continental flights (including a segment to Europe and back) , but when I went to purchase it, I was told there had been a fare increase (+350$ !!) and the quoted fare was no longer available. Once I can believe, but three times? And one of them was the same low fare I had been told was no longer available before, but there it was again...but guess what, this time it also was "no longer available".

Has anyone else had this occur on a "more than one time" basis?