They have a form on their website to get off their calling list. I have an email I'm getting ready to delete, & I'm giving them that one. You might give them a junk email address you only use for mailing lists.
I've gotten calls from this number once day, for the past week. I don't answer numbers I don't recognize, and they haven't left a message. It's annoying and on that comm. website (if that's who it is) you have to input all of your info, which I don't feel comfortable doing. What a pain.