Cancellation of booking after taking your money

I booked a flight with travelstart and the amount for the flight was debited from my account. Hours later I then received an email saying my flight was cancelled but my account was not credited with the amount debited. When I tried to contact them they were telling me bout policy of 72 hrs refund turn around. The consultant I was talking to refused to transfer me to someone who can reverse my payment as I was speaking to her.

It is bad faith to take someones money and then refuse to give it back as the service was not received.