Login Page For "Submit Ad"

Can’t seem to make the login page appear for “Submit Ad”. It is a blank page. I downloaded form contact plug in and activated it, still nothing. Can’t seem to reach anyone at Envato - not even through their ticket system that doesn’t even work. It tells you to enter information in the box below to find there is no box. I am ready to call my bank to file a chargeback for this lisfinity theme I purchased if I cannot get help. It is ashame you don’t have easy access to customer service.