You can either login to the cpanel from the standard URL
http://www.YourDomain.com/cpanel
http://www.YourDomain.com:2082
or directly from the billing area
For billing area, please login here
https://www.QualityHostOnline.com/client/clientarea.php
Go to Services > My services in the top navigation menu
Select the Hosting Account (service)
Click Login to cPanel in the overview column in the left of the page
This button will login you to the cpanel for the particular service (hosting account)