Chennai Airport — indigo airlines not willing to return our full paid amount due to flight cancellation

Sir

Sub: indigo flight cancelled and refuse to return full money we paid. My itinerary number is wf3qty
We booked flight tickets through indigo from chennai to delhi on 12th april and return from delhi to chennai on 26th april and paid rs.16544.00.

Due to cancellationn of flight by indigo itself we could not travel and hence requested them to return back the full amount to me.

They say they won't give full amount and give only rs.4544.00 since they take rs.12000.00 as cancellation fees per person and per trip rs.3000.00

I told them if i cancel the travel by own it is acceptable for cancellation charges and since the flight is cancelled by themselves how can they deduct rs.12000.00?

We are not a rich person since we want to have dharshan at mukthinath we want to go from delhi to mukthinath booked flight tickets from chennai to delhi and back from delhi to chennai.

If we ourselves cancelled the booked flight tickets can agree for cancellation charges. But if the flight is cancelled by indigo itself they need to return the full amount and if not can take small amount as cancellation charges.

Request you to advise indigo to return the full amount to me.

With regards
Raghavan