PayTM, Indigo Airlines - Refund of extra amount paid for flight tickets

We had booked Indigo flight tickets for **th November **** (Booking ID ********** & **********). On **th November **** morning (approx. around * a.m) we were informed by SMS that the flight was cancelled. Following which we were not offered any alternate flights and was forced to book next flight to Varanasi, thereby paying extra Rs **** for * tickles. We had made several phone calls and sent numerous emails to paytm regarding the refund of the extra amount we had to pay for the * tickets. We had also registered a complaint with PayTM (Complaint ID- ********). But even after all the ordeal Paytm only refunded the money for the cancelled flight. They didn’t offer alternative flights for **th November, which as part of a basic corporate ethics should have come without extra charges for us. We also made calls to the Indigo customer Service and they were not ready to take the blame and asked us to take the complaint to Paytm since we used PayTm for booking. The flights that we booked initially was Indigo airlines from paytm and later after the cancellation we booked additional flights using another website, but this time also we booked Indigo flights, for which we had to pay extra Rs **** for the flight ticket. Till date we have made more than **-** calls, to Paytm asking for refunds or a solution, to which each time they kept specifying that they gave us refunds to only the cancelled flights and will not be given a penny more. Each call went up to hours where they kept us waiting for long hours assuring that we will be given a solution as soon as possible. But there was never a solution. Replies to the mails sent also came back only after many reminders, which again echoed the same responses that we won’t get justice. This has been going on for a month now, and apart from monetary loss, we had to go through so much inconvenience including mental stress and waste of time. The customer service at Paytm did not give us a proper solution or answer within the normal time frame that includes **-** hours. We are writing this complaint after a lot of deliberation and contemplation of the events that transpired and we demand justice in the form of a proper compensation that includes the refund that has been asked for and also a compensation for the troubles caused in the period of this one month.