I have recived defective product

I have orderd samsung s25 fe mobile phone on flipkart .Within just two days of delivery, the handset started exhibiting serious display issues, including: Screen flickering Double-screen/ghost display Intermittent display malfunction Device becoming difficult to use during normal operation As a responsible customer, I reported the issue immediately and raised a replacement request on 14 October 2026. Following instructions from Flipkart, I visited the Samsung Service Center in Ballari on 12 October 2026 and again on 14 October 2026. The service center examined the handset, informed me that the device has a motherboard-related hardware issue, and issued a job sheet for the same. However, Flipkart is insisting on an additional document from Samsung to process the replacement request. The Samsung Service Center has clearly stated that they will not issue the specific document requested by Flipkart and have instead suggested repairing the handset by replacing the motherboard. I purchased a new premium smartphone, not a device that requires motherboard replacement within days of delivery. The issue occurred almost immediately after delivery and was reported without delay. Samsung has already acknowledged a hardware-related problem and issued a job sheet. As a customer: I should not be forced to accept a repaired handset within days of purchasing a brand-new device. I should not be expected to obtain internal documents between Flipkart and Samsung. I should not suffer because of coordination issues between the seller, marketplace, and manufacturer. From last one week i have been mentally distrubed from this...i have called 100 times for flipkart but they are not resolving it.... Please solve this issue