We had some disruption to our rtw business flights x 4 in June. Finnair made changes to our flights which allow our connections to work albeit we now have 12 hour layovers in NRT and HEL. However on our return leg our Finnair HEL-NRT is 3 hours longer so miss our connecting flight with Japan Air NRT-MEL. Will Japan Airlines organise a flight change? Do we need to contact them?