You can find out which ones are zero'd by calling the Medallion Line. I've done this before although it was a 45 minute wait.
Originally Posted by
gya007
I received 4 letters in December. Per my records, I've used all of these gift-cards (and subsequently deleted those emails to reduce clutter). Very confusing. Delta should be able to tell which GCs are zero-balance and not send out escheatment letters for those...seems like simple thing. oh well...