You can reset your cPanel password by logging into the members area at http://www.prohostmanagment.com/clients
Once you are logged in, click on "My Products and Services"
That will bring up your hosting account - on the right hand side there will be a small green arrow - click on that green arrow.
It will bring you to your Hosting Account details where you can view your cPanel login information, and even reset your cPanel password.
As always, if you have any questions, you can also contact us by submitting a support ticket.