I have my cell phone number set to 867-5309 in the company directory for obvious reasons. Someone just sent me a message saying "I tried to call you at 8675309 but didn't get and answer." OMFG.
Now I wanna know more! Are they a corporate type so into their work they didn't even notice? At any rate you should send them a video of the song, With a note saying "Maybe this will help you memorize it"...