Canara Bank — refund not reflecting in my account, it been more than a week

Address:

Mysore

Canara bank[protected]

Refund done by amazon india

But not reflecting in my bank account

Refrence number[protected]/- rupees
74332740094009331045172 - 640/- rupees

I booked few equipments for myself through amazon app, payments were made by my card
But they had to cancel the product due to the covid 19, they informed n gave me the reference number of the refund they have processed but it has never reflected in my account p