If you are not able to login to the account and if an error throws that says 'Unable to allocate a day pass for you, please contact your administrator', it indicates that you are added as an Occasional Agent in your account and your account does not have sufficient day passes to log in. 

You can contact your Account Administrators and they can help you in purchasing day passes for logging in. A new day pass can be added to your account from under Admin > Account > Day passes. You can also view the day pass Usage History from under the same page.