Answer:
Since your customer gave the aide the card and PIN (and I assume has not reclaimed that card), the customer would be liable for the charges that exceeded the authority, unless she had notified the bank that she was revoking the authority. If, on the other hand, the customer got the card back and then the aide subsequently stole the card and used it, those charges would be unauthorized and would be subject to the liability limits of Reg E.
First published on BankersOnline.com 11/02/09