Xiaomi India — It's about I'm facing the problem in opening my front camera

Hello sir i am a Xiaomi poco x3 using customer.In my mobile front camera not working i tried to contact poco India customer care they told some instructions which i followed in my mobile after that also camera not working finally they said please reach Xiaomi service center
Now i am in service center they told now you need to change the camera and its charge too
Please note In my mobile there is not any single scratch or dent after update i got this problem not only me lot of poco users having the same issue they are cheating us because they are releasing update they didn’t check properly after updating mobile front camera was not working and also my mobile is 2years old so i can't claim warranty too please resolve my problem.