Procedure to claim refund of advance money from travel company

Dear sir/ madam I had given an amount of rs 50,000/- as an advance to a travel agency at connaught place. Subsequently, I had asked her to make changes, but after receiving advance she started showing arrogance, reluctance on my package and kept on increasing money and building pressure to pay more money After negotiating with her for a couple of days and realising that now she was exploiting me.. as I m fixed by giving her advance.... O requested her to refund me the money... To this first she said, she would return Rs 25000/- as her company has been charged credit notes Then later she said.. she would refund rs 15000/- Now she is saying she would refund Rs 10,000/- Do I have any right or govt has any provision, wherein I can get justice and my refund Her email/ response I m attaching below to understand the case/ her behaviour Thank you.