I'm very likely attending UCI. Mmmm... I'm waiting on UCLA's decision, and maybe other in-state interview opportunities. If I'm lucky enough, my choices will be whittled down to UCLA vs. UCI -- but that's if I'm lucky enough.
From what I've heard about deposits, they're returned to you if you notify the school by a certain date no? Well, I don't see any harm in calling in and explaining your interest in your school (and you'd be able to get away with not stating your alternative options) and asking if a decision was made for you? Not qualified to answer, but I would call in. Worst comes to worst, you end up paying a deposit that'll be returned to you right?