Bridgestone — poor tyre quality

Address:	Valsad, Gujarat, 396195
Website:	www.bridgestone.co.in

I have purchased new innove cresta in dec 2017 and running till date 15000 km. On 9th nov 2018, while driving in madhya pradesh on plain road tyre got side wall cut near the rim and also tread cut.in both back side of tyre with in 4 days. This is a clearly a manufacturing or the design faults.
Submitted the claim by dealer but rejected which cant be look like a market leader tyre manufacturer.