Canara Bank — online refund not processed

I am having a savings account with canara bank, canning street, kolkata. I had added rs. 25000 to paytm on 10th april 2018. For some reason, i transferred the same amount back to my account. Its been now 4 days but the amount has not reflected in my account. I called up paytm customer care, and they gave me a refund request number. But canara helpline is not responding properly, so i am not aware of the status on this. Please help in this matter as i have an urgent need of funds.