Shocking British Airways experience

My daughter and her family, consisting of her husband and two small boys, aged 2 and 5, booked on British Airways Reference number 2YC927. On the outbound journey they were allocated completely unsuitable seats, despite attempting to change them,which ruined their flight, upset a passenger sitting in front of them who complained throughout the flight, were not given meals for the children, the arm rests did not go up which added to the stressful situation and the Velcro on my daughters seat was incorrectly placed and ruined her jersey and her scarf. <br> In order to try and ensure that they were allocated better seats on their return flight later today she contacted Customer Care but was told she could only check in after 6 pm last night and when she eventually managed to get on line found they had been allocated even worse seats than before. Any other more suitable options disappeared when she tried to change them. We have spent hours on the phone to British Airways and they say 'bad luck'. They also left their pram in Manchester. All in all dreadful service and a bad attitude which resulted in my daughters flight being an expensive and dreadful experience.