Pureit / Hindustan Unilever — Faulty product followed by misguidance, cheat and fraud.

Address:

Badhibigha nalapar, Hisua,Nawada (BIHAR)

I bought one pureit water purifier from Amazon. after installation i saw that product was making abnormal sound that time. after installation the service provider called me for feedback. so i clearly told him that the product is faulty so i am going to replace it. on this he assured me(which i consider and take it as misguidance) that product is okay, it is just pipe fitting which got loose... and consequently it is making sound. he assured me to fix it within 7 days. since my installation was hectic and stressful because i had to make multiple calls to just install the product... so i agreed to him and i did not replace the product since they assured me that product is okay.
even after 30 days he did not fix the issue and only when the product stopped working and i made a service request in pureit care, they sent me technician. since product was faulty... one problem after another kept coming. it is just 4 month since i bought the product and more than 8 times it got repaired. the product gets new issue every 15-20 days.
since it is in warranty period they are fixing it free of cost, but when it's warranty will expire... what will happen to this product. shall i keep spending on my hard earned money on this faulty machine every 15 days??
since a company is a legal entity and it's employee represent the company. so any misguidance and suggestion given by it's employee means company is misguiding me. and in my case they have clearly misguided me by giving false assurance that product was okay. i was about to replace this faulty product but due to their misguidance and lies... i didn't. i am requesting them to replace my product but they are not taking any ownership of their misguidance. they are telling me to talk to Amazon.
but since it is PUREIT employees who has misguided me then why i should talk to Amazon??
now i am tired of making calls to PUREIT CARE.
now i want to file a case against the company to replace the product as well as pay a compensation for my inconvenience, time waste and stress...so that i could realize my CONSUMER RIGHTS.