There's junk mail, and then there's nasty mail: San Francisco writer Lisa McIntire says Bank of America sent her a credit card offer addressed to "Lisa Is A Slut McIntire," and she posted photos of it on Twitter on Thursday.

BofA tweeted her an apology and pledged to investigate.

McIntire, 32, told the Los Angeles Times in a phone interview that she first learned about the mail in a text exchange with her mother, which she posted on Twitter.

"Interesting piece of junk mail addressed to you. 'Lisa is a slut McIntire,' " her mother texted.