I have broken my head all through the weekend over this. Here's the lowdown.
They don't have any refurbished 135 f/2 L lenses. Period. Not only is it not in stock. It is not even for sale.
What we are seeing is an old cached page. I spent half an hour with a sales rep and then her supervisor over this.
However, Slclick, since you were actually able to make a purchase they might give you a new one for that price or something like that, which will be cool. Let us know what happened, and good luck!