I'm sorry to hear you're having problems with the login. Unfortunately, without any further information, it would be very difficult for us to determine your login information. Can you please at least give us the site URL, or account name, please? The name you used to register in the Support Center does not list an associated website. Check out your Account Management Panel (AMP) for more information.
Please provide us a little more information and we would be happy to help!
Apologies as I had also meant to mention how the WordPress login path typically works. If you install WordPress the Admin path very consistent. For example, if had installed WordPress into directory like this:
Then the resulting WordPress login path would be:
Installation path for your wordpress site is:
The WordPress Admin path would be:
Hopefully, you're seeing the pattern. If you don't know where your installation is installed, then we would need more information on the account in order to look at it and determine where the installation was placed (if you are hosting with us).