I can’t log in because i use university email and it has already expired.

I am having an issue with my account connection. 

The email is no longer accessible because it was provided by my university and has already expired.  

I would like to request unlinking this email from my psn id and updating it with my new email or just unlink and delete it because right now, I can’t log in EA account so it’s mean I can’t update everything.  

I still waiting for help   If you need any additional information, please let me know and I will provide it right away. Thank you in advance for your assistance.