[Resolved]  Indian Airlines — Refund not provided

I had tried a booking on the air india website on 21oct. They deducted an amount of Rs 12440 without providing me a pnr. On calling them I was assured that the amount would be refunded to my credit card in 4 days. But that has still not happened. On calling up, they either do not respond or hang up after picking up the call ([protected] ,75,76) .
I have emailed them the details thrice but have still not recieved their response.