Dear Sirs, When staying in the Netherlands, I and my wife Guurtje Kisch-Heringa needed to postpone our return flight to Israel from July 12 to July 21. Since no email address was given to do this, I had to do it by 'phone When trying to contact the KLM servicetelephone [protected], on July 5 and 6, I received recorded messages variously stating that that waiting times were over 10 minutes or one hour. On at least three occasions I waited for a reply for well over an hour, without getting a response. This is appalingly poor service. If you are unable/unwilling to let me have a convincing explanation beyond the standard "we are very sorry for the inconvenience", I will seriously have to consider not flying KLM in the future. I may mention that I am a Flying Blue member of old standing, nr [protected] 3. Yours sincerely, (Prof.) Hanan Kisch e-mail : [protected]@bgu.ac.il Tel : +[protected]