Dear Ms. Chisholm,
Thank you for posting your request on History Hub!
The National Archives and Records Administration does not have the authority to upgrade discharges or characters of service in personnel records. Changes can only be made by the Department of Defense. To petition for an upgrade on discharges, please complete a DD Form 293 (Application for Review of Discharge from the Armed Forces) and submit it to the appropriate service branch review board listed on the bottom of page 2. The form is available in PDF format from the Department of Defense. Provide as much supporting documentation when submitting the form.
We hope this is helpful.