Sony India — new brand led tv problem not get service

Address:

Pune, Maharashtra, 411046

I purchased new brand led tv, (from maharashatra electronic, SADASHIV PETH)when i checkd found demo tv provided to us, and i asked to showrrom person then told us no issue you can use, but
problem came in next month and service person came and repaired but agian this problem came after two days, and still not get any solution from sony service centre we are totaly not satisfied with sony service and product quality, and i want replace this led.but they not agree with this.sony quality is worst.now service engg also not calling to us every time we calling and asking for service ...also custmer care person also not giving any solution
we are waiting for your reply.hope get solution form ur side
model-KDL-43W950D
SR NO-8535316
BYER NAME-ADITYA J CHOUGULE
INVOICE NO-TR/17-18/APR 1496
my mb no is [protected]