This is probably a basic question, but the title pretty much says it all. I'm holding an R ticket HKG-JFK//ORD-HKG booked through cathaypacific.com. I'm trying to determine what change fees apply, and can't locate that on my e-ticket receipt. (I might want to change the outbound flight to a different flight on the same day if upgrade inventory opens up -- the flight I'm on right now looks busier and busier.)

I think this should be no charge for rebooking, and there's also unlikely to be a fare difference. I found the hidden corner of the website that lists general conditions for all the fares they offer, but there's the standard caveat about how exceptions might apply so I'd like to be sure. Where do they hide this info?