No where to sign out of the site or even to edit email sub.

I'm receiving emails from these and haven't played a game since 2022. I decided to follow the email they sent me and un sub from emails. Nope it doesn't work. You need to be logged in. Ok. I log in. No where on the site to unsub. Use the link again now I'm logged in. Has it worked? I don't know. Instead of saying I've unsubscribed from the site. It now asks me for a phone number instead. Give me a break and just unsub me.
Now I try to log out of the site. Nope. Again, there's no where to log out of the site either. So now I've emails I don't want and logged into a site permanently.
Can I delete my account instead? I'm never signing up to these sites ever again with my real email address.