How to unlink ps5 from old ea account

My old ea accounts email no longer exists but my ps5 is still linked to that account and I am stuck with it. Ive tried technical support like 5 times and they have had no fix, I bought the premium edition so even if I create a new ps5 account and create a new ea account I don’t get any rewards. There is no possible way to recover this email because it's my old school one. Am I the only one whose had this issue?