2016 we supposed to fly Air Berlin back to our home Sweden Gothenburg, but the flight was fully booked and did not allow us to go on even thought I was 7 months pregnant. So we got the vouture from airberlin afterward via Email. But I cannot even use that redeem vouture while I am trying to book ticket, seems really weird, and we try to call, they never pick up the phone. I just want to know how bad this customer service can be?? And We do now want to have cash instead of this useless voutures that soon will be expired! Please contact us as soon as possible. +[protected] [protected]@gmail.com