Hindustan unilever pure it
Helpline not responding

I am using a Hindustan Unilever Pure it which needs an immediate change of Battery. I am trying the helpline numbers 18601801000, 9223200200 and 9223600600 since last night but the line disconnects in between. No one is even calling me back. I have wasted my 80 to 90 rupees in calling them. I STRICTLY CONDEMN THEIR SERVICES!