Cant create adsense account

I am trying to create an adsense account for my website. The problem is I have previously worked for a company who I set up and ad sense account for. I set up the account with the email adress I had with that company and linked my gmail email adress to it.

Now I cannot create an adsense account because my email is link to another adsense account. I cannoot get into that account anymore and neither can I reset the password cause I dont have that company email any more.

Can you suggest help?