In order to access your cPanel (if you are a Rebel Networks customer) first try logging in your Rebel Networks Customer's area -> My accounts and click the "Go" button under cPanel's column for your account.
A new page with two possible ways to access the cPanel will load - via secure or normal connection. Note that in case your ISP (Internet Service Provider) filters the connection and blocks the standard secure cPanel port (2082 or 2083 ), you will have to use the normal connection.
Alternatively, no matter whether you are a Rebel Networks customer or not, you can access your cPanel directly through:
http://www.yourdomain.com/cpanel
or
http://www.yourdomain.com:2083 (for secure connection)
and
http://www.yourdomain.com:2082 (for normal connection)
Rebel Networks offers the best cPanel hosting package. With it you can access and manage your cPanel without any problems.