State Bank of India — Releasing the original Land document

Dear sir,
I am Madhan prakash.M were filed a complaint against releasing the original land document on 8th Aug 2013, thereafter a field officer from SBI idappadi branch came to my home, on 12 Aug 2013 to meet me and said that we will release your original land document within a week.
Since more than 18 days were passed but even now we did not get any further update about it.
I am sincerely request you to take a speedy action/steps at SBI branch idappadi to return the original land document.