Hindware Sanitaryware Collection [Hsil] — non-replacement of closet

I purchased one alpine s 300 italian collection closet along with other house hold fittings during 2016 from the dealer m/s. Grace agencies, a. V. George road, kandanad, kochi-682305 for my new house. The closet found defective by the plumber after the installation, that he noticed scratch with a small line under the corner. The complaint reported to the dealer immediately and registered with the company as per his instruction. The service technician came my home and inspected the complaint and said that it is a small scratch and can be repaired by applying ceramic paste over it. He also added that there wouldn't be having any problem until 10 years. I believed his word. Unfortunately, the scratch began growing and reported the complaint again. (Ref. No. Bh035474). But they refused to accept my complaint by saying that it is crack and hence it can't be either repaired or replaced.