"do not apply when the bank identifies the error and corrects it on its own"
Just based on that statement, I would say it does still apply. It wasn't corrected on its own, the customer had to request it be corrected, though the conversation was initiated by you.
I think the identified and corrected on its own would be more in the case of a vendor double-posting and things such as that.
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Someone's about to get horned!