I wish there was a way to do so without having to ask people you haven't seen or met for more than a decade (if they can even still access) to verify that it is

I wish there was a way to do so without having to ask people you haven't seen or met for more than a decade (if they can even still access) to verify that it is indeed you trying to access with the same mail an account that's been sitting for way too long still. I understand the possible risk and inconvenience, but I can't be alone being struck with an account like that. Hell, I'm too afraid to even see if it's public and visible now, since the last time I tried to delete it (for the fourth of fifth time, because spammers kept turning it back on by trying to login years ago, I presume) it kicked me out before I could accept the new ToS. I haven't received any responses on my queries to provide a contact for GDPR requests that isn't a blackhole, also. I should probably just try sending one at the disabled accounts address too.