Paytm — refund of the paid amount

I recently booked an air ticket through paytm application for 27 dec, 2018. Later on i had to cancel this ticket and i did it in almost 4-5 hours as i had to book the ticket of 27 nov, 2018. Now the problem is that the air company always refund the whole paid amount on cancellation, if done within 24 hours. But paytm has not done so and on the name of airline, they have deducted a huge portion of rs 3675 out of 5771 and i have only received rs 1827. So, i hereby request you to look into this matter and reimburse my whole amount to my account.