State Bank Of India [SBI] — rc book not submit charge cut without notice

From my car loan account 2950 rs deduct for not submit rc book without prior notice of submission of rc book. When i contacted branch first they said it will refund. Then after i contact branch they said its cut from head office and they request for refund, but it's not refund after still 20 days. 2950 rs is big amount so please refund it. My rc book already submitted.