Apple India — iphone 7 plus charging cable

Address: 380060

I went to unicorn service senter in himalaya mall for change my cable because its not work properly but they cant replace my cable. And now i m very disappointed from your apple service. Now i will not buy any type of apple stuff. So can you help me for chang my cable because i must need my cable because my iphone warranty will over on 30 may. So i need it very fast