Stucked in new zoho business mail setup

Stucked in new zoho business mail setup

Hi, 

When creating a new zoho mail to my company, I am now asked to enter a valid phone number. I put the number, but that number is not available for SMS, so... when proceeding to the next page, I cannot verify the code and I cannot turn back to change the number. Unfortunately I went back in the browser and lost that page.
Trying to setup again I receive the info that my domain is already in use. Trying to sign in, I receive the answer that my account does not exist.

Any help?
Beste regards
Joao