Jet star is the only airline i have seemed to have trouble with. I made my booking through a travel agent as there was a package deal at the time. However when i went to the jetstar website and tried to look at my booking through the manage by booking tab it would not allow me. When i contacted them a spokes person said rudely that they cannot and will not link it to my profile. I simply explained that we had booked it through an agent and qantas had no problem linking our other flight after it was booked. The spokes person said well next time log into your account when booking, which seems abit strange when a travel agent is making the booking. Never have i heard this before , i just thought it be simple enough to link it to my profile when i had my booking number but this was not the case.