Unable To Access My Initial Email

I have attempted to contact Zoom regarding changing the sign in email whith no success. The situation is I no longer have access to the initial sign in email, therefore when I attempt to change the sign in email address, Zoom sends me a confirmation to an email address I no longer have access to. It is so frustarting especially when no one gets back to me after several attempts at contacting them. Are there any solutions or work arounds for this dilemma?