Paytm Mobile Solutions — Wrong seats booked by paytm

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New Delhi, Delhi, 110092

Hi
I had booked movie tickets through Paytm on sunday(2-Apr-2017) for 2 seats S7, S8, PVR Rivoli, Connaught Place, Delhi for show timing 3:50 PM but after receiving a confirmation, I got seats T7, S8( rows were different) . I had called paytm but as per them, I had chosen that seats. PVR didn't took the responsibility as it was booked by third party vendor (Paytm). I want a refund of Rs. 750 back as it was a mistake of paytm, but they are denying to refund.