Credit card charge and receipt amounts don't match

[jkleck]

Tried searching and found similar situations, but not this exact problem.

I show an AMEX transaction for $276.78, but the actually charge should have been $273.78 (as shown on the receipt). How do I reconcile this?

[jkleck]

Figured it out. Called Marriott and there was a last minute charge that wasn't on the original receipt.