Transavia flight, was booked as KLM but i couldnt pick out seat or obtain boarding pass with KLM in any respect. Crammed seating and very no frills practical experience throughout. First and final time. I tried to up grade to top quality economic system anis seat on-line during the checkin https://sites.google.com/view/business-class-flights-/how-to-select-the-right-christmas-vacation-package