Thomson — thomson b9 pro 102cm (40 inch) full hd led smart tv

Address:

Junagadh, Gujarat, 362260

Now video (Black screen) is not working and only audio (Sound) is coming.
I request you to depute their technician to attend the complaint. After few days engineer visited on 07.08.2019 and told that card has to be replaced of tv but he will not be able to tell anything when it will get replaced and how it will get replaced.
Service engineer told me that thee is a card problem we can replace the same after receiving the card from thomson company.
But now thomson compay not attend my call and email and provide any information about replace of card.