Toyota — irresponsible car servicing (possibly could have killed us)

Address:	Nashik, Maharashtra, 422004
Website:	www.toyotabharat.com

After Servicing Our Toyota Innova At Wasan-Toyota Nashik. We Found That 3 Bolts in Rear Tyre From Drivers Side Were Not Bolted at all. And because of that while driving the car on road we noticed sound coming from the rear tire.
Then we took our vehicle to nearest tire shop for check up. they found because of loose bolts the tire got damaged internally. Then we called toyota showroom for help they came and checked tires and replied "Sorry'. Thats it No Guarantee for the tires if that gap could possibly damage our car in the future. we asked for replacements they said that tire is OK so there is no need for replacement but we saw what damage that loose bolts created because lack of responsibility of car mechanic. My Questions to you is when we are getting our replacement of the damaged tire?