How can the applicant change the wrong data?

In case if the applicant entered wrong data like passport number, name, nationality, profession , date of birth , visa number and date , passport expiry date , passport issue date , passport issue place by the following instructions:
1. The applicant should Contact the medical center and ask them to submit change request as change candidate details or as change Medical exam request
2. Ask the medical center for the change request number and change request submission date
3. The change request is for free and the applicant shouldn’t pay any money for it.