Sony India — Black spots on tv after 13 days of purchase

Hello
I bought sony 8000h 55inch in 81000₹
On 10th October but on 23th october ive noticed black spots on screen for the same i made a complaint and engineer also visited same day
He wants me to submit the tv for 4-5 days for repair to the service center which is 70 km away from my city than
I talked to service center manger
He said will send mail to sony for replacement only then can do anything.
Its been 4 days now and they havnt got any reply yet.
Pls look into this matter and replace my tv or refund my money
Service request no 63502924
Mobile no [protected]