Indian Bank — charge dispute in my a/c from bank end

Address:

T-650A1,BALJEET NAGAR Janta park, New Delhi, Delhi, 110008

I made an order on amazon of 13449 inr. But due to some reasons i returned the machine and they initiated my refund to the same.in my account {hardeep singh, saving a/c[protected], indian bank (Branch chandigarh sec 20-d)}. They have provide be a refund but the bank isn't credited that amount in my a/c, and when i called on customer care they said its not possible from our end.
When i had a word with amazon they suggested me to file a complaint here.
Please help me in the matter.

[protected]@gmail.com
Refund reference no. 75503729080027989023175