I have a trip coming up that involves domestic Australian and international flights to the US and back, with internal US flights via Delta all on the one reservation. A change had to be made to my Delta flights, yet months later Velocity (when it's not telling me my membership number is wrong) shows two separate reservations, neither of which have the correct flights. I've been in communication with them and they eventually confirmed that my account had to be updated (after swearing that their records were right - it had me in two cities at the same time!). Another month later, the flights haven't been updated in the Velocity website and when trying my booking reference on the Virgin website I either end up with a blank itinerary or an error message.
EDIT - the Velocity website booking has been amended, but incorrectly, so flights are missing, and seating and baggage details are incorrect.
The actual Virgin website still has nothing in my bookings.