I can not enter my corporation menu

I can not enter my corporation menu

Hi! 

Im Eduardo, and I have a problem, I register one organization with this domain which is in squarespace   http://www.i-mexicana.com/

When I register that organization I a dd and verify the domain  ( i-mexicana.com ), and then I wanted to sign in but I could not enter. I tried several times to reset the password with all the account mails E have in the organization with no result, I suppose I miss some points, or orthography or something i don´t remember, I am sorry to ask this, but, ¿Can you help me to get the admin account user ?

Thank you very much

Eduardo

And sorry for my terrible english.