Laundrokart lost my item

I gave some items to laundrokart for dry cleaning and when we went to take items after few days, they said that they haven't received yet item and asked to come few days later. For 20 days, same thing happened. When I forced them to give item back they finally accepted that they lost item and offered me 3000 as per their company rules, but item cost is around 10000, so what are the options which I can use to get my money back?