Consumer Redressal

I have paid Rs. 5000 as Caution Deposit which is Refundable. I took TC for my son in April 2013 and Submitted application form along with Original and Photo Copy of Receipt to the School authorities who promised that I will be getting Refund by End of May 2013. There was no response from School till End of June and in July had a call them and again they said it will be for sure come in July/August. No response till end of August and finally had to visit the school only to get an answer that they have misplaced my application and wants new one. After much discussion, I agreed to provide photocopy which I had with me through scan and send email on 3rd September 2013 and still now I have not received the Refund. I have only email which I sent on 3 Sept 2013 as evidence, but I didn\'t take any acknowledgement when I submitted my application in April 2013. Can I file a complaint against the school? Best Regards.