Thomson — not working my 32''led tv

Address:

No 334 12TH BLOCK Pk colony pulianthope, Chennai, Tamil Nadu, 600012

Thomson tv — purchased a tv 4 months back now it's coming only black screen
[protected]@gmail.com
I have purchased thomson led tv within 4month its not working while running itself shows black screen and getting only audio i have called customer care and raised the ticket and after i got reply mail from them like within 48hrs will give the solution and after 72hrs also i didn't get any information after 4 days get one mail there i got complaint number and they mentioned within 72 hours issue will resolve but till now update i have called customer care there they disconnecting the call even i can't connect to customer care from last two days...
Is answer for again again reply me for mail
Iam following 25 days but no use please solve my problem
My ticket no [protected] and
Complaint no tv892059