Kindly provide me the correct contact information for the service center where I can get my phones displayed changed. I visited the service center in Jayanagar 9th block and they really really really bad and they don't know how to speak to their customers. Also, I tried visiting other service center, but they were not available in the mentioned address. Also, my phone's performance has deteriorated drastically. Kindly assist me.
Gopikrishna S P