Max Travel Shop — Non delivery of hitachi ac

They called me on 23.4.2016 offering online sale.
Then I enquired about hitachi ac and told them to send me email.
I am forwarding all the correspondences in between.
Their bank accounts details
Account Name :- Max Travels Shop
Axis Bank
Account No :- [protected]
IFSC code :- UTIB0001103
Branch :- DELHI
They called me from these 2 Mobiles
[protected] and [protected]

But never delivered the AC nor refunded my money.
I paid online Rs.27, 540