Eureka Forbes — Service request in warranty

I have brought a vaccum cleaner of Eureka Forbes on 5 may 2020. It's not even a year and my product is not working. I have called up customer care for service on 14 th December and it's been three weeks and none of them have called. I called them daily for the status and daily iget the same answer stating " I am escalating the request and technicians will contact me in 24 hours".
Since three weeks same answer can some one help me to know how to get the issue sorted.