Eureka Forbes — RO water purifier not working after 1 week of installation

We bought Eureka Forbes water purifier from Flipkart and it got delivered in broken condition . They replaced the product and installed the second product but after 1 week of working it stopped working and the indicator turned red. The water stopped coming. We complained Flipkart but they didn’t replaced it as the time for replacement for gone and suggested us to contact Eureka Forbes as the product is still in warranty. We logged service request but after multiple services also, it works for 2-3 days and stops working the next day. I want to know if the product is in warranty and the customer is not even used it then whose fault is this . If the product is completely damaged that it can’t be repaired then whose is responsible for this