Not opening on iMac 10.8.4

Just downloaded the Pro edition for my iMac. It doesnt open even after a restart. Have not found a way to contact Customer Service.

Edit September 20th 2013. I never saw the icon at the top of the screen so I assumed that it wasnt opening. I was expecting the icon to be in the dock. I have the application on my iPad 1 and the iMac i3. Although Im mainly using the application on my tablet Im not having any issues anywhere. Customer Service never contacted me and for that they loose 1 star.

iPhone5sMan about Pin Pro for Pinterest