Don't worry at all.If you have successfully registered the application form, it means that your email address is registered correctly in the system.When you come to the User Portal login panel, click the "I forgot my password" link at the bottom and reset your password from the window that opens.Then, continue the process from where you left off.
If that doesn't work, wait 24 hours and your record will be reset from the system.Then, you can fill out the application form from the beginning and start the process again.