H1B Dropbox- New Portal Migration - Lost access to old email

I had an account associated with my old email in UStraveldocs. I scheduled a dropbox appt in that portal in 2022.

As i try to migrate my old account into new portal - usvisascheduling, i realized i lost access to my old email. Does anyone know how can i migrate/create new profile in the new portal? I did send them an email seeking help, waiting here for their reply but this has been concerning to say the least. Kindly help