My friend's 13 year old daughter went on a school trip to Spain. During the trip she became very ill with a migraine, and she was left in a restaurant, on her own, whilst the teachers and other students went off to do other activities. Is this the right thing to have done? I feel that they neglected her, and that at least one teacher should have returned her to the hotel and made sure she was safe. I, and my friend (the mother) are furious about this, but don't really know how to approach making a complaint. Any suggestions or help please? Thank you.