follow up on my question/post- I called Iceland Air - they were able to verify there is NO extra taxes after we made payment for the booking with Holland- what they supposed may have occurred during the process I had to add a different email address for my husband (contact?) at any rate, this may have caused the system to think the booking was going to be changed to his name/email??? I called Holland first- and they were great and reassuring but also thought I may have upgraded- So, the sytem does work. once flexible fare is paid for there are no issues- lesson learned - I think had I hit the button to pay for the taxes then there would have been 2 flights!!!! WHEW! Glad to let everyone know things are ok and appreciate all the support and communications regarding my concerns!!!!