Originally Posted by
RCAQ01
A3's booking system seems to be a bit moody at times - especially if you book roundtrips with no more than two days (based on my experiences). I've had 5-6 bookings where I had to call the call centre too. In all cases, the agents were professional, patient, and friendly.
My failed one was a multi-city with one day in between, so there may well be something there with "no more than two days" bit.