As far as I know, Canva does not offer a lifetime subscription for Canva Edu. Canva Edu is a special version of Canva designed for educational institutions and educators, offering features such as unlimited storage, team collaboration tools, and access to premium content.
To get Canva Edu, you will need to sign up for an account using your educational email address (ending in .edu or other valid education domain) and provide proof of your affiliation with the educational institution. Once your account has been verified, you should have access to all the features of Canva Edu for the duration of your enrollment at the institution.
If you have any further questions about Canva Edu or the signup process, you can contact Canva’s support team for assistance.
Premium Method
Canva Premium For Lifetime Through Canva for Education
Step 1: Go to This Website: https://10minutesemail.net/
Step 2: if you see a Temporary Edu Mail then follow the next steps if you don’t see an email with.Edu then simply click on the Delete icon Unless you get temp.Edu Extention.
email should be something like this @edu.pl
Step 3: go to https://www.canva.com/edu-signup
and sign up with that temp email, verify the email account.
After confirming you can edit a temporary email to your Gmail account directly from Canva
Edit Account Email from here: https://www.canva.com/settings/your-account