Canara Bank — water purifier amount not yet been refunded from bank

I have orderd tattva water purifier from amazon using Canada bank debit card and for some reasons I cancelled my order. Amazon sent reference code:75503729092028317372538 for collecting the money from bank. I contacted Canada bank customer care number and who picked the phone was irresponsible and he was not responding properly. He said that amazon have only not send the money and our bank would have refunded at the time they have sent the money. He said afterwards within 45days the amount would come. It has been more than a week the amount is not refunded from bank. Worst response from Canara bank. I am asking you that to return my money faster.