Sony India — low quality accessories

Address:

Tirunelveli, Tamil Nadu, 627009

I have been using sony xperia z1 since 2015. Before six months my mobile is not operating properly so i contacted your service center in dindigul. They have updated software and charged 650 rs but still the same problem exists. One more thing i have replaced back cover from the same service center since the old one got broken. Today the new one also got broken, after that only i came to know that it was not as like the original. Now what can i do. Really disappointed by the service provided by your authorised service center. Kindly give me a solution.