Hindware Sanitaryware Collection [Hsil] — Hair line crack in wash basin

I purchase two nos. Of delta wash basins of hindware few months back from m/s pankaj sanitary, narangi, guwahati, assam for my home near basistha mandir. Both the basins developed hair line cracks after installation. This is very disturbing. I have trusted hindware brand for its quality assurance but the company is providing wrong products and information to the customers. Even after complaining about the cracks in the basin to the seller, the latter took no responsibility and asked me to buy a new one instead. Is this the way a company like hindware is providing service to the customers?