by David Dickinson:
You absolutely can refuse to send her a new card. There's no regulatory documentation requirement to comply with. This is solely a customer service issue.
by John Burnett:
There is no requirement that you provide an explanation for refusing to re-issue yet another card. I do recommend providing notice, though, and a promptly as possible. "We have disabled the debit card ending in the last four digits 9999. We will not be issuing a replacement for the card."
by Ken Golliher:
Fool me once? Shame on you! Fool me twice? Shame on me!
In circumstances where a bank has lost money due to the consumer's negligence, only a fool would replace the card involved.