Jeremy Piven arrives to the screening of The Wrestler, New York City, USA - 081208

The greeting - a thank-you for the actor's campaign work during the election - was Piven's prized possession, until his rogue Blackberry erased it for no reason.

He says, "I was lucky to stump for Barack in Indiana and to introduce him in Chicago. Barack left me five numbers. It was the greatest voicemail that I've gotten in my life by the way... I saved it and I went back to listen to it and my BlackBerry had erased all of Barack Obama's phone numbers. Then when I called back to try to tell them, 'Can I get Barack's number? He left it for me.' They didn't believe me and I now have nothing and I've been trying to find him."

Source: WENN