Samsung SYNC SGH-A707

Hello, I'm having an odd problem with my phone. When I get a new text message the notification from the phone says I have three new messages. So, if I have two unread messages it'll count the first one as three messages and the second one as just one message.

Is anyone else having this this problem? I'm curious because I don't know if I'm being billed for messages I'm not getting.

Thanks.