Ok, I did that through US. They have to price it by sending it to some other department which could take 24 hours. That's fine, but here's where it gets weird. I checked my itinerary online (with US) and the computer tells me that I'm booked in coach for the SQ legs. When I check my itins on UA, they have me in business, but the A380 flight is missing. So I called Singapore airlines and they assured me I'm in business, they even gave me a record locator code that I can see my SQ legs.

Not really sure what information is correct at this point. Kind of afraid to give them my money.