Sony India — Promised me for replacement of my mobile handset with new handset

Address:

Jalandhar, Punjab

Sony Xperia Z had a problem submitted my phone on 23-03-15 and received on 16-04-15 and it was having a major problem of vibration then again submitted on 17-04-15 then got a refurbished phone on 15-05-15 having faults and already told to service center then he promised me to give me a new handset within a period of 2 weeks and today its 22-08-15 yet not received my new phone i keep on calling and messages but not proper response got