Indigo Airlines — refund the amount

I booked one ticket ref. No. Xcetgm for bhubaneswar to chennai for 8th october 2017 on 27th september. The passenger name is pallav kumar.
Unfortutnoly ticket booking not successfuly as per indigo airlines and informed me that you will get your amount. My bank transection no. Igaccaaws7 for rs. 6703/-.
Still i have not received any due amount. I asked my bank regarding my amount. From call centre of banking service i got sms tht your transection igaccaaws7 has been successful and settled on 28 th september 2017. For more details you contact your merchant.
So many times i caiied indigo call centre. Every times attendent insured me to get amount and provided one pgi ref. No. Jsbi[protected]. And requesting to send mail to you.
I here by attached my bank details.
Please see the matter urgently.