Indian Bank — transaction pending from indigo airlines

Address:

Chennai, Chennai, Tamil Nadu, 600010

I was refunded rs.2596 from indigo airlines on 14th dec`2019. Still i have not receive the amount. They told they did the transaction but when i checked it, balance is not increased.
Kindly do the needful as soon as possible. The transaction id is[protected].

My account number: [protected].
Indian bank, kellys branch.
Kindly do the needful as soon as possible.