You might rethink your process. If you study the Visa or Mastercard rules, I think you will find that, when you complete a charge-back, you are required to provide your customer credit. If the matter is not a Reg E claim, you can charge your customer back if the merchant resubmits. As for the verbiage youi're asking about, you are correct. It's not required because you're not dealing with a Reg E claim.
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8