Good Day! Thank you for posting your question in the Community. We understand your concern but once the form is submitted, the information is sent directly to the school. I would recommend reaching out to the Enrollment section of your school district directly in order to correct this information. They should be able to assist you in updating the information on your registration form.
I recommend reviewing this article for more information.
Please feel free to let me know in case of further questions.
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To assist you further would you please elaborate on the issue you are facing while accessing the forms? If you are getting an error message please share a screenshot of the same so that we can look into it.