MRF Tyres — Manufacturing defect tyre

Got a new car from kia on 2nd oct20 and on 28th dec21 noticed the bubble in one tyre and approached kia service, they simply said it is not a manufacture defect and after long conversation they had sent a tyre to MRF and after couple of days they given a letter stating rejected due to polyester break/ pinch cut due to sudden impact… funny part is without inspection of alloy wheel how can they come to conclusion and it’s a simple inspection to satisfy the customer as they are already ready with their answer as rejected…
In my past experience I have faced same issue with Maruti and appollo tyres after vehicle purchase of 2 years but still it got exchanged….that’s called the service…worst service by kia and MRF.