MRF Tyres — tyre/unsatisfied service

Address:

Kolkata, West Bengal, 700011

I would like to bring this in your notice that on 30th of March 2018 I bought a tyre from one of MRF authorised store in(126 Chittaranjan avenue, Kolkata 700073).

After using it for about a month.All of a sudden some strings came out from the tyre and because of it an air leakage started taking place.Now as per the promise made by the shop in terms of the warranty from MRF, I was reluctant that there no injustice I would face.
But unfortunately it turns out to be totally different.
After chasing the shop owner for about a week or so, I got a letter from MRF mentioning it not to be there manufacturing fault.
Can anyone kindly explain it to me that how come the other 5 tyres which I am using in the same vehicle for more than 6 month have not came accross with such issue, Where a brand new tyre from MRF faces it in just a month time.
For your information, Every tyre in this 6tyres vehicle faces an equal amount of pressure.

While making a purchase it was assured from the shop that MRF is the best service provider at present, Now I am totally disagree with. I never thought that such a big company will make a lame excuses.