Renault — Not returning my original voters card

Address:

Mumbai City, Maharashtra

Sir
I have purchased Renault Kwid. At the time of registration formalities of vehicle sales rep Sunita of Renault showroom Vashi Navi Mumbai had taken my original voters card about a month back.
She had assured me to return the same at the time of delivery of vehicle.
However she did not do so and told be that she will return the same with 2-3 days .
This is going on for the past 20 days.
Hence i request that corrective action may be taken in this matter so that such sales rep dont take such matters in a careless manner.