On 21 June 2009 I flew on Lufthansa LH 511 from Buenos Aires to Frankfurt in tourist class. At the beginning of the flight it was announced that the flight had been chosen for a survey on quality of services and that a questionnaire would have been distributed to passengers. Among all those passengers who had filled the questionnaire two flights would have been offered. It was not said in any way that the “lottery” was reserved to a few passengers and it was not announced how the passengers would have been chosen. The... read full review »