License recovery with email no longer in existence

I purchased a pro license with lifetime updates in 2016 and I finally need to upgrade my computer. I have a screenshot of the license page, which shows my name and date and type of license purchase, but no activation code. I can’t request a copy of it my email, because the email I used when I purchased the license no longer exists.

Any suggestions? Thanks.

Hi, please email [email protected] with all the purchase details, we’ll change your email in the system.