I dont wish to be rude but are sure that ebookers had a return flight price to USA for ca. 200 ?
I only ask as the average EI price in Sept is 500 - 600 euros.
If you are sure that Ebookers were advertising that price then obviously this was their error which the computer picked up on when doing your booking.
Yes you've lost two euros unless you want to spend time explaining this on the phone to ebookers.
(Travel companies dont sell EI web fares cheaper than EI except....
... Sometimes travel companies buy in bulk from EI and, at the last moment, they may discount at fares cheaper than EI's -not because those travel companies have a great price from EI but because they wish to off-load the seats at any price.
Obviously this is not the case with a USA ticket some months ahead -and at such a crazy price)