I recently made a transaction on the Vietjet Airlines website and paid using my Axis ATLAS card. Since it was a direct airline website booking, I was supposed to get 5% EDGE miles credited but to my surprise, I got only 2% EDGE miles credited. At the same time, I also made another transaction on Vietnam Airlines website and I got the correct - 5% EDGE miles for that transaction.
I called up Axis customer care and asked about this issue and they opened a service request for the same. Today I got the following mail response saying that the issue is closed and they decided not to give the 5% EDGE miles I am supposed to get.
I am seeking the community's guidance on what I should do now. Should I complain to the RBI ombudsman using the link they mentioned - https://cms.rbi.org.in or is there any other better way to take this forward?
Also, I've been following the community for a long time now, but this is my first time posting. So please let me know if I am posting this incorrectly or in a wrong section and I will correct that as required.

I called up Axis customer care and asked about this issue and they opened a service request for the same. Today I got the following mail response saying that the issue is closed and they decided not to give the 5% EDGE miles I am supposed to get.

I am seeking the community's guidance on what I should do now. Should I complain to the RBI ombudsman using the link they mentioned - https://cms.rbi.org.in or is there any other better way to take this forward?
Also, I've been following the community for a long time now, but this is my first time posting. So please let me know if I am posting this incorrectly or in a wrong section and I will correct that as required.