I booked a Copa ticket on 100% Copa metal via the Chase travel portal. On the Chase portal it had name name as First Middle Last, however when I review the reservation on the Copa portal it lists FirstMiddle Last. In other words my first name is a combination of my first and last name. This may have made it impossible for me to add my United MilagePlus number, see attached screenshot. I tried to call Copa, and was told since I booked through a third party it would be $50 for a name change for every 3 characters, my middle name is between 4 and 6 characters, so I would have to pay for two name changes. I tried calling Chase Travel and they told me to call Copa and that they could not do anything.

Any recommendations? I am also concerned my TSA Pre number might not work.