Originally Posted by
mandragola
On a return trip Friday BCN->EWR I paid the $300 copay + 20K miles for a BusinessFirst seat. ...
My reservation is no longer showing in the system since it's past, and there's no was to view past reservations like there is on UA.
Sure there is. On the co.com home page, go to Reservations -> Change/View Existing Reservations. There are three tabs: Current, Past, and Inactive. Click on Past, and a reservation from just last Friday should certainly be there, assuming it was linked to your online profile to start with. On my Past tab, I see my flown reservations going back at least 2 months (I don't know how long they stay).
If the reservation for some reason was never linked to your online profile, then use the Find tool at the bottom and put in your last name and confirmation number and that should find it.
Also, once you find your reservation, the receipt should show the base fare, plus any change fees, fare add/collects, and upgrade co-pays, all listed separately.