people do not seem to look at the bigger picture when it comes to these type of scenarios, regarding the JER flight, in my experience whenever thomson has had to return back to the UK with passengers when JER is closed due to fog then, if their is a flight the next day they have in the past put passengers up in a hotel, with ryanair or easyjet i dont think u get this same service, also thomson re honoured your flight yes granted from DSA, but none the less as pointed out ealier probably due to CVT flight being full or not one being scheduled.
as for the slots, these are always a last minute thing when they are being published and when they are granted to the airline, the reason flights may get schedule changes in the future etc etc is probably due to aircraft having to go to the hangar for their checks and also slots changing daily from ATC,
people are all to hot to start bad mouthing however when a company does good for them nothing is ever said!!
p.s if your flight is ever that bad or you have issues with thomson then fill in the questionaire on the flight i know for certain they contact you!!!! and resolve the issue
thomsonfly are a great ariline