Sorry about the bad news, Lou. I guess a lot of people, including a few on here, are sweating at the moment that they aren't going to be able to sell their houses and move forward in their plans.
Still, if someone wants your house badly enough, they'll still go for it, so fingerscrossed that this will be the case. Just make sure it's not your mother that's put a jinx on the proceedings to put you off going to NZ.
