Sorry to hear that,
Brummy Git. Aside from following PAXboy's advice (and I'd suggest pen to paper rather than finger to keyboard), you might contemplate sacrificing your birthday and/or Christmas presents from your good wife to assauge the situation.
Everybody makes mistakes - but life is too short to worry about 200 GBP. Cheer up - you could have ended up like the German chap who wanted to go to Sydney and ended up in Sidney, Montana!
http://www.boingboing.net/2007/01/03...german_to.html
BOFH
* booked a train journey from London to Hamburg, not realising he needed a visa for France in those days - 320GBP
* Unused bumped passenger vouchers sitting in drawer for seven years - 1000 DM
* Misquoted flight - 250 GBP
* other wastes of money too numerous to mention