Catch-22 confirming a new trusted device because email not accessible


years ago, I signed up to use teamviewer to keep an eye on the various compiters around my house. I used an email that was valid at the time. Since then I've installed TeamViewer on a few local computers and never had a problem.

Now, I want to update my email address because the old one is no longer in use. However, i am caught in a Catch-22. To login and change my email, I need to use a trusted device (something new). The confirmation is sent to my old email address, so I can't login and update my email address.