Our trip to New Zealand was supposed to be an opportunity to spend quality time with my brother - who emigrated from Scotland 21 years ago - and his young family. But the four weeks we planned are now approaching six, after two flights home to Scotland were cancelled due to the conflict in the Middle East. The disruption has cost us about £4,500 so far, on top of the initial outlay of the holiday. Our eldest daughter is missing school, my husband and I - both self-employed - are not earning and