Originally Posted by
kazdave
Right, so this appears to be correct, but... I did a similar upgrade recently on Air Tran and they credited the previously-charged fee for upgrading to premium economy seating. I guess I just like that policy better and came away appreciating that unexpected credit.
Actually, it's similar. UA will refund Economy Plus charges if you later pay for an upgrade to a premium cabin. AFAIK, a cleared CR-1 will count and you can request a refund of E+. The same doesn't apply to baggage charges, as stated above.