So BA0995 20:55 TXL to LHR has been cancelled too. Very helpful BA staff member on phone has rebooked us on flight BA0981 07:05 TXL to LHR tomorrow morning. Very glad we have a hotel reservation for tonight at the airport - thank you for the suggestion. Received some good advice: don’t stay in a castle, but we will pay for a reasonably priced hotel. Don’t order three lobsters, but you don’t have to eat at Macdonalds either. Thanks everyone on this forum for all the help.