I remember last year a lady writing on T.A. that she had booked with her Thomson rep in the Oykun and paid £25.00 each for a set menu. She was annoyed when she got to the restaurant and saw people enjoying the A La Carte and she complained bitterley about her meal.
The reps do get a cut for every booking, So I concur with Scunner, book directly, it's cheaper and you can pick what you want from the menu.