Originally Posted by
friedablass
No worries and no reason to get defensive
.
While you understood that the OP wanted to know what was reimbursable according to the letter of the law, I understood that the OP wanted to know in general what has a track record of getting reimbursed and if they can charge in excess of the airline credit amount even though it may not be explicitly within the Amex terms. There are many charges (i.e. UA Travel Bank, low value tickets on B6 or WN) that are most likely (or for sure) are not the intention of Amex use of this credit but nevertheless have a proven track record of pretty consistently getting reimbursed automatically.
Thus if OP was looking to use the credit for Mileage Multiplier even if not officially an eligible charge then I was just pointing out that there is no need to hesitate as it's already been proven time and again that it gets reimbursed as per the Wiki, even up to the full amount of the airline credit.
Cheers!
My understanding of the question was if it matters if a charge is a large or small amount (specifically, if a charge for seats or miles is over or under the fee cap that AmEx provides). My point was simply that when making charges that are not clearly officially covered, it's safer to make them in smaller amounts, to make it more likely that the charge is automatically credited without need to contact AmEx.