Jet Airways — cancellation of ticket and reimbursement

Address:

I-194 b lalita park,garhwali mohalla laxmi nagar delhi-110092, laxmi nagar ,delhi-110092, New Delhi, Delhi, 110092

My flight was cancelled by jet airways from delhi to mumbai on 9th february without prior intimation.
After so much hussle, they provided me a flight from pune to delhi. I paid 4000 extra to reach to mumbai including (Taxi services, cab charges.)
I am asking for compensation and they are not responding.
I have mailed them 6 times and no response till now.