To login to your cpanel with your emial id, you need to first authenticate the email address with the cpanel account.
How can you do that? see the below images
Enter the cpanel link .ie (https://cpanel.thegogogo.com)
click on the tab log in via cPANELID

2.

Authenticate you user id and password given by THE GOGOGO.com and you email id will be available for login to you cpanel.
if you face any other issue related to login.kindly raise support ticket.
Thank you