I know I jumped in and gave you an electronic contact, Maureen, but I have to agree with the ladies that a written / posted letter is more likely to get a response than is a web site message. If nothing else, it shows 'em your serious enough to take time and spend money writing so you're less likely to let it drop.
Co-incidentally, yesterday's paper included a report based on figures from the Air Transport User's Council about complaints they received in the 12 months to March 2004. They state that these are complaints they receive late in the day - "people genarally come to us as a last resort" and that the numbers of complaints will naturally be higher for the bigger airlines. Top was British Airways (with 252 complaints), followed by EasyJet (173) Ryanair (160), KLM (70), Flybe (68) and BMIbaby (67). Then came Air France, Emirates, My Travel and Virgin (36).