Axis Bank — balance deducted by a failure payment but not get fully return

Address:

New Delhi, Delhi, 110015

Dear sir,
I did a payment by my friend's axis bank credit card on january 15 2017, due to any fault payment declined by the merchant but the amount of 3465.80 rupees deducted from credit card
So i make another payment by my bank of baroda debit card
After few months in april 24 2017 i got refund of only 1510 rupees instead of 3465.80.
I talked to customer care as well as contacted to the merchant he gave me the transaction date and arn no. Of refunded money
Details are following:-
Date of payment-15. Jan.2017
Date of refund-24. Apr.2017
Deducted amount-3465.80
Refunded amount-1510 only
Arn no - 75178047016000023473821
Date of payment by merchant-4 apr 2017

I kindley request you that please help me about this problem and refund my whole money with interest

Thank you