Someone told your CSR a story. Your bank is involved only to the extent your employee heard the story in your lobby vs. the check out lane. It's doubtful you have a subject and you have no supporting documentation.
Moreover, the transactions were not "...conducted or attempted by, at, or through..." your bank. If you file, it's voluntary. I would save a stamp.
Thank your employee for relating the anecdote... Hmmm, the story could be a nice red herring crafted to distract you. Watch the new account.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.