Well, I say 'reasons' but I've only got one and a bit, though they're enough that I'll never use eBookers again - they don't appear to pass on meal requests. And they don't respond to customer queries, so I've no explanation as to why, or even if they could have blamed the airline for the stuff-up.
Since eBookers never responded to my comment, I might as well post it here:
Dear ebookers,I wish to make a complaint about your service. I recently flew long-haul on tickets booked with you, yet the airline I flew with had no record of my special meal request. This may sound like a relatively minor issue, but the thought of facing another eight hour flight without food is enough to stop me using ebookers again.
I'm just glad it wasn't a flight to Australia. If you're also vegetarian, or need to make special meal requests for any other reason, you might want to give eBookers a miss. The prices are pretty much the same across all those cross-search sites anyway.
[This is in no way a random post made up from a random old email I found while doing some tidying. Ahem.]