Wirelessly posted (BlackBerry9630/5.0.0.591 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)

What waitlist would you need to clear?

Booked on NH metal and a non-flexible ticket, I'm not sure why you think you should get a change just because you want one. Pay the change fee and get the date you want or fly what you bought. Badgering employees to break the rules is bad form IMO.