Please ensure you are complete the steps below when logging into Zendesk.
Step 1:
Go to https://pthsd.zendesk.com/hc/en-us to open the Help Desk Web Portal
Step 2:
In the top bar (shown below) click "Sign In"
Step 3:
On the Log in Screen Click 
Please Note: Do enter your username and password into the email and password boxes on the right as login will fail.
Step 4:
Select your Pthsd.net user account or sign in using your pthsd.net user account.
Step 5:
Click ALLOW to provide Zendesk Access your district Google account the first time you access Zendesk.
Step 6: You Are now logged into Zendesk Help Center.
To submit a ticket simply click 
in the top bar