Contrasting approaches. BA Twitter team “no, you only get the benefits of your rebooked ticket. Sorry about the delay [ignoring downgrade].” Me: “refund?” BATT: “Here’s a link to our delay compensation page that doesn’t say anything about downgrades”.
Lounge desk. “Come on in, we’re really sorry about the downgrade, there are lots of short notice cancellations today”.
So a reasonable outcome all in all, but the Twitter team seem to go to quite some effort to avoid helping.
It never hurts to ask if your request is within reason.
I learn this time and time again and even when faced with different responses from different BA customer service portals.
Twitter, Facebook, email, telephone (executive club and regular line) etc.