Indian Bank — about refund reflection

I have ordered laptop on amazon but due to some reasons i had canceled it. But the refund is not reflecting in my bank. We have contacted amazon they provided refund reference number:#7bjxc7yk0000k78mzvoa
The refund amount is 43, 990. They told to contact bank but the bank is denied to provide service regarding refund. So please solve this problem.
A/c no. [protected]