What is that one requirement that you would never like to compromise on? Well, it should only be comfortable for a journey that is supposed to last longer than five hours. So if you have already booked your flight tickets with Wamos air and now you feel that you will need to upgrade, you can read through the process or call the Wamos air customer service number and get help from them. For more information Visit our blog https://cheapairlinesdeals.com/blog/upgrade-ticket-at-Wamos-air