Looks like BA don't want to give you a refund until the last minute. Posted on the Head for Points website yesterday
British Airways drops ‘regional weekend’ CityFlyer services to Europe
During the week, BA CityFlyer flies from London City airport to key business destinations in Europe. At weekends, however, it offers a range of leisure destinations to maximise the use of its aircraft.
As far as I can tell, all of these services appear to have been cancelled for Summer 2020 although passengers have not been notified. Here are the impacted routes which have been cut:
From Edinburgh: Florence, Palma
From Glasgow: Palma
From Manchester: Alicante, Florence, Ibiza, Malaga, Mykonos, Nice, Palma
From Stansted: Faro, Florence, Ibiza, Malaga, Mykonos, Palma