Nestaway Technologies — Misleading booking process.

I am coming to Chennai on a government assignment. I never knew before paying the money that the lock in period is 6 months and they will not refund the entire security deposit if I leave in 4 months, which is my intended duration of stay. I only got to know about this clause once I paid the money and rent agreement was formed. Now, I don't have any means to contact their customer care nor do I have an easy way to cancel. I don't want to lose my money like this.