Billdesk — with respect to the previous complaint i. e., regarding nptel payment transaction

Thank you for solving the previous complaint but its partially solved and not completely.
Now it says that the nptel exam payment is done but the amount debited from my account is rs. 1117.70/- which includes the nptel exam fees (Rs. 1000/-) + fdp amount (Rs. 100/-) + bank charge (Rs. 7.70/-). Which means fdp amount is not paid still and it is asking me to pay again.
Also i have performed this transaction twice which means i need to get back the amount of rs 1117.70/- back.
So can you look into it??
I'm also attaching the necessary images of the nptel site and the transaction done for your reference.