Yonex - bad quality nanoflare

I bought one of most expensive racket of nanoflare series and it could not bear tension and broke on its own in few days. i expected a lot as paid huge amount for one of the most expensive racket, in my group and others look upto it , now with this issue, they will lost trust unless, yonex does needful, which is replacement. I can take it up on twitter or other social media if not heard as have no other option since i paid hefty and had decent expectation