Flipkart — Unresponsive behavior of customer support for rescheduling of flight

I want to reschedule a flight booking done through a flipkart application. I informed flipkart travel customer support using mobile application and through calling to its toll free number. After submitting the request through mobile application the reply is in the form of text message"that the team will contact in 30 mins"(message attached). With the telephonic communication the customer support staff says that "they have noted down the complain nd their team will call back within 8hrs". There is no call back from the staff. I have tried doing the same process thrice, still there is no response. I am attaching the copy of ticket. I request the concerned team to please look into this matter and get back to me asap. I require my ticket to get rescheduled as soon as possible.

Regards,
Khurram Parvez