Sansui India — replacement not received from last five month

Address:

388001

I bought 40 inches lcd from local vendor three year back. Every year my lcd having same issue about blank vertical line appear on screen. At month of april 2018 my lcd goes for replacement third time and till date i am waiting for replacement of lcd back. Support people of sansui playing football game with me. There are so rudely behave with me and not able answered that when they deliver my lcd
Incident details
Date : 25 april 2018