2 psn accounts linked to single EA account

Title, i noticed when i got invited to the skate. playtest that it was using my old PSN name that i no longer have access to, didnt think anything of it until i launched the beta on my PS5 to see it is still using that old PSN name instead of my new and up to date one, if theres a way i can just change the name it displays i would be fine with that, but im worried if my only choice is unlinking the unwanted PSN account then it will remove my access to skate. and the early access to the beta