She definitely has a higher risk of a uterine rupture with a classical scar. And bleeding heavily is a sign that a rupture could be happening. even for normal VBAC women these days .2 of women who go for a repeat c/s have an asymptomatic rupture when they have a scheduled c/s. Which isn't very high but the point is that you don't have to be in "labour" for a rupture to occur as nearly half occur prior to labour. I think if you go to the ER they will send you straight to the labour ward because that is the policy in most Australian hospitals once a pregnancy is past 20 weeks. You can try staying at the same hospital and asking for the consultant and stating that you refuse to leave unless you see the consultant in charge or simply go to a different hospital as you are allowed to seek care in any hospital in Australia(public) They cannot refuse you care.