Indigo Airlines — Deduction of amount from credit card without generation of ticket

Address: 560054

Website: goindigo.in

Sir/madam,
On 27th sep 2016 i was booking ticket from indigo website which was scheduled from bangalore to delhi at 1:15 pm from bangalore airport but my ticket was not booked and my balance from hdfc credit card deducted which is not refunded till now.
I have registered complaints also but not got my amout.
Total amount of deduction was rs. 7339 @17:22:25 on 27th sep 2016.