Canara Bank — charge dispute file against canara bank

Address:	Maksi branch
Website:	Canara bank

On 19 april amazon has canceled by order and initiate my refund on 21 april, they provide me refund reference no and then i call to canara customer care service two three times but they are not responding but still i did not get the refund on 2 may. I have bank account in maksi branch of canara bank in madhya pradesh the customer care service blaming to amazon for the refund but they have issued my refund amount but the bank is not cooperating with me