On Monday April 08th I booked to fly Ibiza to Manchester on Saturday 15th June aboard TOM2667. I paid to pre-book seats but it was only yesterday the seating plan became available. It is a 2-4-2 configuration x 43 rows and the seat letters are (from left to right) ACDFHJKL which is not Thomson's seating plan. The Jetair 767-300 is 2-3-2 so it isn't this either. When I rang up and asked all I was told is that it was a B757 chartered by another airline. Well it ain't a 757 using this configuration!! Any ideas anyone??