iMessage and FaceTime not working on Mac Pro and message stating to contact Support came on
iMessage and FaceTime not working on Mac Pro and a message stating to contact Support came on with a verification code. It was working on 8/29 but stopped on 8/30. When I called support to even speak with anyone they wanted $19. I don't want to pay $19 for an Apple problem. I cleared my key chain, also reset my apple ID password but still not working. Works fine on my iPhone.
MacBook Pro, OS X Mavericks (10.9.4)