Maruti Suzuki — New Wagon R VXI - Tyre wear out ( defective )

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Chennai, Tamil Nadu

I have a MARUTISUZUKI WAGONR(VXI) MODEL 2015, New car[protected] only delivered, while drivingI observed rear right side Tyre wear out, In my first service I informed toservice care(vishnu service center - Guduvanchery) they verify and told RIMbend is there and they replace spare tyre to rear side & defective put asspare, I asked to resolve the issue but they told RIM not cover for warrantyHow can i ratify the issue, It is defective spare While my first drive also iobserved the issue, Please help to replace it