I just got off the phone with their customer service here in Zürich, Switzerland asking questions politely in order for me to understand more about my cancellation situation. To my surprise the guy seemed like he has no time, no care and no understanding and definitely no patience and made me even feel unimportant at all. He seemed tired and maybe the customer before irritated him off or he was not having a good day, I don't know but I definitely know that I started in a good mood and just wanted to understand my situation. Customer service is there to help the clients understand better and to guide clients inside their process not to belittle us. For me, this is not professional and got me in a really bad mood. If your customer service representative is in a bad mood, please don't let him answer the phone. The mood will just end up in a domino effect.