Originally Posted by
stephem
... When I go crazy on the stopovers, I keep getting a CTM charge added, and it looks like people have complained that ITA mistakenly adds that...
It could be an issue with certain reservation system, for example, some GDSs namely Sabre still add MPM surcharge even when a rule says 'ignore'. It could also be an issue with specific fare coding not uniformly recognisable throughout GDSs.