the info was correct. If you did it once recently, it was actually an agent who was either inexperienced, unknowledgable, or dodgy.
Originally Posted by
Tafflyer
Nonsense. Note that on the stopover leg you will be booking 2 flights, SYD-SIN and SIN-LHR which will cost slightly more than the straight SYD-LHR booking, but you absolutely can do it. I did it once on the outbound and stopped for 5 days.
Experienced BA agents are being successively replaced by newer inexperienced ones.