Xiaomi India — MI TV 80 cm screen

Address:

Agartala

Sir, i bought mi TV 80 cm from Agartala store on 13/05/2020, after 4 to 5 days i had noticed the lower part of the screen is different from the upper half, i talk to xiami local customer care they said due to covid 19 you can complain it into xiami online customer care number, i tried several times but didnt able to talk with customer care excecutive its number comes always busy. So help me how to solve my problem.