...aaand I guess we'll have to wait a bit longer to see a 777 in AUH (maybe it was an error all along) because later today the inbound flight now changed to Air Belgium too.
Back on the phone to BA ....and, because flight times from DXB didn't work with our schedule, accepted a downgrade to J on Air Belgium (but with Concorde arrivals service and Tier still promised).
Flights are part of a BA Holiday so - without being able to unpack the package price into hotel and flight - I'm not entirely sure what exact level of compensation we'll get, but it's an overnight flight anyway so F isn't that big a deal. If anyone has any experience of what to expect re compensation, or whether I need to get written confirmation of Tier and arrivals service or just go by phone agent's word, I'd really appreciate hearing.