Technically, it won't fit the definition of an unauthorized EFT under Regulation E because the consumer received the benefit of the transfer [see definition at 1005.2(m)]. However, it could still be a UEFT under ACH rules, and you could return it if your customer provides you a timely written statement of unauthorized debit (WSUD). If you do send it back, I recommend refunding any fees your customer incurs at your bank due to the double debit (such as an overdraft fee), even if Regulation E isn't implicated.
I'd push for the customer to try getting the duplicate payment reversed from the credit card end (since your can reject the Regulation E error claim), rather than pushing the extra debit back from your side. If you send the debit back, there's always the potential for the credit card issuer to misinterpret the return and hit its cardholder (your depositor) with a bounced payment fee, and that will just bollocks things up worse for your customer.
Last edited by John Burnett; 06/10/14 02:19 PM.
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8