I apologize you've had this experience with your campaign. It is definitely not the experience we want our users to have! I can understand how important it is for you to not only easily edit your campaigns, but for these changes to save. With that said, what was the last step taken before you realized your edits weren't saved? What browser were you working in? Did you receive any error messages? Are you still unable to find this campaign with your edits in your account? I have taken a look at your account and do see multiple campaigns created in it.