MakeMyTrip India — Highly unprofessional behaviour ,mentally harassing & Refund

I'd booked 3 flight tickets on 24th December 2021 from Bagdogra to New Delhi for 8th January 2022. On 4th January 2022, my flight got cancelled by airlines. I had contacted makemytrip regarding the new ticket and I had specifically mentioned that I want to have only morning departure timings with the flexibility of dates . So makemytrip person promised me that he'll get the get morning timing flight as told. When I got the itinerary from the airlines, they had given the evening timing flight which I totally refused at first place only. I again reached out to makemytrip and I'd explained the entire thing to which Mr Aalim said that if the mistake has done from our end then they'll get me the changed timing ticket after tracing their calls what exactly had happened. They got back to me, committing their mistake & told me that Ma'am you are eligible to ask for new ticket, so I 'd asked to kindly get me the new morning departure timings to which Mr Mayank sharma said that we're unable to book the ticket from our side as our servers are down, so they told me to book the ticket through airline application amd whatever amount I have to pay for changes will refunded to my by makemytrip. Mr Mayank sharma sent me a reference mail on my registered mail ID where I 'd shared my payment screenshot amd he promised me that this will be refunded by makemytrip for sure as the mistake was done by them, and the promised me that after sharing the screenshots they'll initiate the refund within 48 hours. Now till today, no refund has been done by Makemytrip& no action has been taken. I have written several mails to them to which they are just replying that they working on it. I have been calling makemytrip customer care since 5th January 2022 on continuous basis, everyday they give me false hope they 'll call me within 24 hours, 48hours but all in vain. They are doing nothing instead they are mentally harassing me & testing my patience at all levels. I'm literally fighting for my money where I was not even at fault. I request kindly resolve my issue at the earliest