PPF — Not update the passbook

Address:

East Singhbhum, Jharkhand, 831003

I am working in The tinplate company of India limited, Golmuri, Jamshedpur works, Jharkhand. I had opening a PPF account through my company on the year 2006 and money is deducted from my salary. I had opened with Rs. 500 and gradually increased up to Rs 2000. I had taken my passbook from Golmuri post office on September 2015. But Pass book is not updated. Post master did not allow for updated the passbook. The same problem is with other people also who working in the same company.