Can’t enable game sharing.

I can’t use the website, I’ve already done it within 6 months. It tells me I’ve got another PS5 with the setting enabled, I don’t, I’ve reset my password and everything - I’ve removed all other accounts except my own. It says it isn’t enabled on my account but when k go to click enable it tells me it’s already enabled somewhere else.

How do I fix this? PlayStation support is useless.