Sony — Panel

Panel Issue
We have purchased the Sony Bravia in Apr 2015.Suddenly the TV started giving problems where the TV doesn't switch.
The engineer confirmed that the issue is with Panel on the 29th January 2016. He confirmed that the TV will be repaired and sent back with 7 days. When that did not happen there was no update from Sony informing us about the delay.
I called up the customer service team and spoke to Himanshu on 6th Feb 2016. He said that the SLA for repair is 7-10 working days. I asked if I can get my TV replaced, as this is within the warranty period. He promised me a call back on following Monday that is 8th Feb 2016, which was lie.
I called up again on Monday asking for him, where I received a bunch of lies. I had Mr. Jay telling me Himanshu is in meeting, Mr. Tyagi telling me that Himanshu was on a 2 day leave. A team leader of Sony customer service center lies to the customer promising a call back even though he knew he was on leave.
I spoke to another team leader and again promised a call back which did not happen.
Meanwhile a person from the service center comes home and deliver a spare TV and promised that our TV will be repaired the following Monday - 15/02/2016.
There was no update from any of the representatives of Sony. I called to check the status of my TV on the[protected], that is when I was informed that the part will only be available at the Service center on 22nd. After which the TV will be repaired. I refused to wait ay longer as the SLA for repair and gone past many days. I insisted on a replacement of TV. I had spoken to Ketan from the Service center. He told me that for the replacement TV, he would need the invoice of the purchase. Once he receives the same it will take 7-10 for the replaced TV to be delivered. Immediately the next day there was replaced panel that had arrived without any knowledge. As I was promised a replaced TV, I rejected the Panel. I also spoke to Sayed who is the manager of the service center. Even he assured me that he will look into the matter which was again a false promise never fulfilled.
Now the Service Center claims that the head office has rejected the request. They refuse to give me the telephone contact number for head office. All they say is that Sony company has mailed me twice.
Today that is[protected], I am still without a TV, I don have any update about the status of the same. I called up the customer center to get the head office number, they refused saying 'we cant give you the number'. I called up the service center, they only say that head office has sent me a mail twice, but ironically I have never received even a single mail from Sony. I requested them the head office number. They said the customer service will provide the same.
I was a loyal customer to Samsung and it appears I made big mistake shifting to Sony I was promised a replacement TV but that was never delivered.
Today, after paying thousands for the product, I don't have a TV, I don't have a representative who give me any update. I am not allowed to contact the head office. All that is told is I have been sent mails from the head office but I never see the mails in my inbox.
Sony as company is a 'Thug'. They only know how to con people by luring them with features and provoking people to buy their products. Products that don't work for even a year. and icing on the cake is, there is no after sales service. Sony hires bunch of liars who keep giving false promises and help the company to continue their fraud activities.