Originally Posted by
atcomarkingtime
I eventually got through to the ticket desk for Virgin at Heathrow and they booked her onto the Saturday nights flight but only in Economy as the flight was busy.....what can we do about this?? She was prevented from flying by BA as the Aircraft went tech...and Virgin could only give her an economy seat even though she'd paid for Premium...
As she was flying on two separate tickets (as I understand your post), the technical answer is that nobody's liable to do anything for you; the airlines have separately done their best to do what each had promised to do. It would have been different if the trip was booked as one through ticket, which comes with some additional benefits (often at an additional price).
However, it would be worth writing politely to BA and seeing if you can extract something by way of an ex gratia apology - maybe a voucher for a future booking or some BA Miles (if they're worth anything to you).