If your amount has been debited from your bank account but your order status shows as "Payment failed", please do not worry, and check again in 10 minutes. If the amount has been credited to us your order status will be updated.
If you continue to see the same "payment failed" status, it means the amount hasn't been credited to us and the debited amount will be credited back to your bank account, this might take few minutes to 10 days depending on your bank.