It depends. You may be able to do a records correction before the appropriate Board for Correction of Military Records. Unfortunately, you have not provided enough information to best assess.
If you are looking to possibly hire an attorney to assist you with this situation, I do offer initial telephone�consultations�free of charge. �If we can agree upon a time, I'd be happy to initiate the call in order to save you long-distance charges.
Let me know.
(202) 558-6371