Kokilaben Hospital — About the refund which I m still waiting

Address:

101/102 I wing Jankalyan nagar bhoomi park phase- II malad near billabong school

I have already sent an email to accounts dept of the hospital. Still, I have not received any response for the same. It's been almost one month since the refund is pending. Several calls have been made and personal visit to the hospital as well. It's so disappointing and irritating that such brand and renowned hospital behave in such manner.
Its complete harassment to be honest and no curiosity this people have.