Canara Bank — transaction unsuccessful but amount debited, and has not been refunded.

Address:

Mysore, Karnataka, 571105

Myself thejas, account holder at canara bank hunsur branch.
Two of my payments amounting ₹3470 and ₹410 made online using debit card turned out to be unsuccessful despite the amount being debited from my sb account[protected].
The bookings have been cancelled due to non payment and it was confirmed by respective payment gateways.
March 1st: ₹3470 payment for airasia turned out unsuccessful despite the amount was debited.
March 2nd: ₹410 payment for online. Sai.org was unsuccessful despite the amount was debited.

The sms from bank for both deductions have been received.

I raised issue with both payment gateways and learnt that they have not received any payments. So i want to know what needs to be done and when will the money credited back to my account?

Hoping for speedy redressal as i have experienced inordinate delays in customer support in the previous instances as well.