Can't log in to set up my guest list

Hello. I just did the basic sign up (name, email etc). I then submitted and got to the screen where I enter my email address and password to start setting up my guest list. After trying a few times to submit these details and getting the error 'email address or password is incorrect' I gave up. There's no way to get a forgotten password! I have also gone into the dashboard and requested a resend of verification email to my email address but it has not arrived. Not sure what to do next, please advise. Diana