I just tried to book some C class seats for a long haul and the help desk said that there were only 4 seats left in row 4 (I know Johan but I like up top) of a 747 even though there were still up to 7 seats being sold for the same flight.

Then I called reservations in the UK 08705 074 074 and they were able to reserve upstairs seats. You could also try the web sites tel no. 0870 243 0541.

pmcg