Xiaomi India — Xiaomi remdmi note 3

I bought remdmi note 3...and when i took off the laminated sheet from the screen.and open front camera.there is something inside the camera lens which comes in the photo..it is the manufacturing defect, , and its screen sometime get freeze and touch doesnt work... i gave it to the care center and told about these problems they update the software but didnt look after my camera problem...i dont know what should i do..i