MakeMyTrip India — 3x refund voucher fraud

I used make my trip India to book a waiting ticket of train from prayagraj to Delhi. Which was obviously covered under trip guarantee which guarantee to refund you the 3x amount if the ticket did not gets confirmed.. as promised I get the refund amount when my ticket for cancelled automatically after the chart preparation because it was still wait listed. I got ticket amount in my bank but with the deduction of trip guarantee amount which was almost 200 RS. And rest got the 2x voucher of 880 in make my trip. But it's where the scam starts. As when I was trying to book another bus, train or flight between same places.. it shows the error that "The Promo Code used is not applicable at the moment". And when I tried to contact the customer care... There phone are even not connecting.. and when I raised a service request from their app.. it was also equal to no response. I never get any call from their side. It seems like they are very happy after looting 200rs from me. I want to ask MAKE MY TRIP why are you doing this fraud in the name of Trip Guarantee to your customers.. we are spending our very hard earned money trusting on you and you are just stealing it in the name of Trip Guarantee.. if your Promo code is of no use then please remove the feature from your company. And refund my money back as soon as possible. Otherwise I am going to file a complaint against this fraud.. this is not acceptable.