yahoo mail keeps working 60 days after deleting account

I used yahoo mail on Safari for too many years. Canceled/deleted my account with yahoo, but it keeps loading emails even though changed all my login name and my passwords. I check it every now, send everything to spam/delete, but the auto-subscribes still coming (even though I changed my login/passwords for newsletters etc I wanted to keep).

It's been over 60 days since I canceled/deleted the account, but it's still going.

What can I do? I deleted it as my home page.

Thank you.