Delete or merge account

Hi!

Is it possible to close an account or merge when you don't remember you password and your account is linked to an inactive email address? My email address belongs to my previous employer so I can't use the 'forgot my password' function on the website. I need a presentation removed as it is unfinished and outdated. It keeps popping up in Google and it needs to be removed

Looking forward to your reply.

many thanks in advance.