You can send a message to any ad owner using the BisManOnline messaging system. This is particularly useful when the ad owner has not provided a phone number or for some reason the phone number they provided is not valid. Our messaging system is a completely internal system. All messages sent or received will remain on BisManOnline.com, therefore your email address will remain private. As a result, you will have to return to our site to read or respond to your messages.