Originally Posted by
cxn1043
However, even though they merged them on the ticket, my middle name is on surname side not on the firstname side.
You need to contact KLM - you probably need to have it fixed and there are some admin costs involved with that.
A few years ago a travel agent had switched my first and last name and I did not notice it (I could not find my reservation though in MMB). When I checked in at AMS they sent me first to the ticket office to have the error corrected; they could not issue me a boarding pass because it had the wrong last name. I believe the price was 35 or 50 euros.