Wordpress Support

I installed this plug in because of the prompt at the top of my WordPress Site. When i installed it I failed to realize that i should link it to my active account, i thought there would be a page to do this after the main page. It created a free account for that dummy log in and now i am unable to sign in with my paid account to access my features. Is there a way to sign out of an account and sign in with my paid one?