Not sure how often you go over the list and update them but you might want to add the last updated date to your list.
^{- I would like to also suggest adding the processor's names for each [some of them tend to limit users based on their location].}

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IMO, it's still the perfect solution but people in general, aren't educated enough when it comes to its proper fee usage ^{[there are various ways for lowering and dealing with fees]}.