Akbar Travels Of India Private Limited - My ticket is cancelled without prior notice

I am a Professor in University, Jeddah.
I have booked a ticket on March * for a travel from Muscat to Jeddah. Travel date is on March **. Booking reference number is AT*********. My passport number is S*******.
After that there was a mail from Akbar ticketing division to send some documents for the confirmation. But I missed this mail because I was in on-road trip for *-* days. By that time they cancelled my ticket without any notice and waiting my reply. This kind of service is very annoying and never acceptable.

On March *, I had replied and sent all the documents required.
But they are not listening my grievance, saying only your refund is under process. What a disturbing answer!!. Very rude manner.

I want my ticket back on the same date and with same fare.
I had very struggled to book the ticket on that day with reasonable fare. Now the fare is too high and I can’t book the ticket.
Please take an action to give the ticket back, else I will miss my meeting and classes, please.
Please reply and take an action ASAP.