How do I delete an unverified account?

I Have created a second account, but my regular account, ShellingtonCJ, is unverified and I am unable to verify. I do not want to put in my payment info or phone number. I am fine with just verifying my email. It says it would delete the account after 3 days but it’s been 5 and the account has not been deleted, and I cannot re-create the account. How can I delete it? Also, once I delete it, I want to create another account with the same email and username as the deleted one.