Samsung — Defective product

I was repaired my samsung a7 mobile with LED display on 1/1/2022. At that time they were not given Bill copy and said that will give after 2days due to server issue. After that we approached for vibrator which is not replaced at the time of LED Display repaired. Then they are replaced vibrator after three days and given Bill recipient that too invoice no is SMOW5JAN22010. and invoice date was 01/05/2022. I don't know why they're given this tax invoice which was dated 1/05/2022. Okay then all are fine. But after 25 days my mobile LED display was damaged without any external impact or without any external force applied on the that. We went today (25/01/2022) to the service center they simply saying that you guys are damaged the part either additional force applied on that or hitted the floor. We are not done anything like additional press or external impact then why this much worst part was replaced to my mobile. This is horrible. We trusting the samsung because the service and genuinity and customer support. We need additional part or our money back. For your reference am attaching mobile photos and bill copy which was given date as 01/05/2022 very shame of service center and samsung.
Kindly do needful.