BookMyBai — Refund request

I have made a payment of 24K to BookMyBai for hiring a babysitter in Bangalore in the month of August. The maid left in a few hours, quoting our house is too small. Second maid came is after a gap but left mentioning can't do babysitting work. There has been no replacement since then. Any profile I meet and shortlist, either does not show up on the promised date or refuses to join. there is no credibility of the agency in sending the maid on promised date. Even after multiple requests, they are not agreeing to initiate a refund. However, they're incapable to provide any service either. Hence, I request to initiate my refund, or I will be forced to take a legal action.