Xiaomi India — service center amritsar rani ka bagh unethically

Address:

H No 2386/17, Amritsar, Punjab, 143001

My set was showing line on screen. I went to service centre to ask for repair.
Firstly they were saying your phone is out of warrenty. So you have to pay. After i showed them original bill they checked phone. First they told screen have to change it will take five to seven days. I ask them to do it early. One of the guy there screems and told me that your phone is damaged from one side and now i have to pay for screen and it will not be changed in warranty. I told that i will complain. He again rudely say your complaint cannot hamper me any more.