BookMyShow — Refund of event tickets

I booked 4 tickets for a B praak show to be held in Gurgaon on 9th October, Sunday for which the venue wasn’t disclosed. They kept the venue outdoors and due to weather conditions being unfavourable postponed the show to 15th October, Saturday. Now Saturday being a working day for me I am travelling and hence won’t be able to attend the show. Therefore, I ask for a refund and they are denying. In my opinion they are rightful of postponing but changing day and date both is unfair and beyond that if it isn’t suitable to anyone they are denying the refund. Sheer fraud and loot this is.