Old Jun 6, 19, 12:54 pm
Join Date: Jan 2015
Location: NYC
Programs: AA - EXP
Posts: 130
Hi everyone, searched for an answer to this but didn't find one so here is a useful data point!

Upgraded from Economy to Premium Economy LHR-JFK for $275 at online check-in. Posted to my Amex Platnuim biz as 'Additional Collection' and was reimbursed $200 a couple of days later.

Hope this is of help to others here!
mosfet is offline