Air Odisa - refund not made till date

I have booked flight tickets from the Air line. My booking reference numbers are indicated in the attachment. The flight was cancelled which caused many inconvenience for me to make alternative arrangement. Further no refund has been made on the payment already made by me since three and half month of booking. No one in the customer service desk i.e ********** is picking my repeated calls or responding my repeated mails.

In view of the above, I request your resolve the same..