Indigo Airlines — refund payment not received. no proper response from indigo, very arrogant reply

Address: 625007

Website: WWW.GOINDIGO.IN

Pnr-oipzxh. I booked flight ticket for my family on sep 5th 2017. And cancelled it after 2 weeks for some reasons. Still i havnt received my refund money. I asked indigo customer realtions, they asked my statement to prove them that i am not cheating them. I alsready send 2 times my bank statement. They asked me to contact after 48 hrs. Still now no response. They are telling its credited to my account, i have to ask my bank for this issuse. But they didnt send me any transaction details for that. Without that how can i trace this transaction. My banker is tellingthat i have to ask indigo's banker only, they cant trace this without any transaction id. I am in contact with indigo customer care officials no one is sending proper response. I advise people beware of these kind of airlines.