Unknown user name

having set up a wordpress.org site for a friend some years ago. Username is now lost, none of her or my email addresses are registered.

I see many posts about php admin but cant access that without a password or username so it seems a bit of a red herring or I am missing something

I don’t use code or understand it

Yesterday I navigated to a page which asked for the site name and gave me some authentication options one of which was the code ref provided when the domian was purchased. I think I may have this info but cannot seem to find the page I found yesterday. Can anyone help

PLEASE NO MORE suggestions to lookit up in the admin table…because I CANNOT LOG IN