How do I delete my account?

Answer 1

Go to the reference in a desktop mode and follow the directions. Remember, you must never log in again for it to take effect (at least four months). Logging in indicates you want it back.

https://help.yahoo.com/kb/account/close-yahoo-acco...

Answer 2

This is how to close your account: https://help.yahoo.com/kb/SLN2044.html