Canara Bank — refund not processed from the bank

Address:

Madathil (H), kumbalery post,, Meenangadi, krishnagiri, Wayanad, 673591

Sir i was supposed to get a refund in my account for a product that i ordered in amazon that the retailer canceled. But even after 4 days the amount is not yet reflected on my account. The reference number that the amazon gave me is #74332740022002039043273... Kindly trace back the money to my account. The customer service is not providing any information regarding the amount