[Resolved]  Samsung India — problems facing after getting service done at service center.

Address:

Guntur, Andhra Pradesh

I am a engineering student from guntur. I am unhappy with the service i got from the samsung service center. I gave my mobile at service center on 28/8/2017 on the issue of charging problem and battery problem. They told me that they will intimate me furthur. Buy they never intimated me about my mobile service till telephoned the service center and visited on 12/9/2017. After this they apologized and returned mobile on 17/9/2017 and charged rs3700. I noticed the back glass of my mobile was not fixed properly and scolded them and again they apologized and did some adjustments and gave me back.
Again after 1 week the back glass was openibg up and charging problem repeated. So, i consulted customer care and failed complaint. So they repaired my mobile and now the vibration feature is not working in my mobile after this repair from samsung service center. I complainted almost 4 times but they ate not responding properly. What should i do now??