Good service from BA
I rang BA this morning and was advised by a very helpful customer service agent that the change would have been checked manually in the next couple of days, the problem realised and I would have been contacted.
So they are letting us move the whole return trip by 12 hours to the morning flight the next day which has a decent one hour connection in Terminal 5. They are also letting my wife move her outbound earlier by three days at no cost, as our plans have changed since the flight was booked. So well done BA.
Bit of a pain in principal though, as BA are returning to their old timetable from about 18 months ago so that the last flight of the day to Manchester leaves too early for connections from the mid-evening arrivals into Heathrow. They should take a leaf out of Lufthansa's book.
BA indeed - more like London Airways.