"And are you 100% sure that you used the link you quoted above?"
That's the one I'm using now and communicating with support through. It's good to know I've got the right one now.
The problem is I can't be sure what url I used when I made the deposit that has gone missing.
I'm embarrassed to say I got it off a search for bitcoin blender. Pretty stupid, I know
If you clicked on one of the google ads then you defintiely went to a phishing site. Clicking on anything from a search without cross checking is basically asking for this sort of thing to happen. But don't be embarrassed, everyone makes this mistake, even i did.
However, you did provide us with the right link. So your chances of going on the right site is significantly higher.
Did you have any luck contacting their support? Lutpin is managing the Bitblender sig campaign so you should probably PM him as well.