Canara Bank — refund not received after 10 days

Address:

Bhopal, Madhya Pradesh, 462003

My amazon order, i had to cancel it and the refund has been processed from their side as i have the reference number with me too. This was on 12th of april. The amount has not reflected in my account till 22 of april. When called the customer care about this they gave very vague replies saying i'll have to wait for 45 days more?? Like seriously? Amazons policy says waiting time is 5 business days so i would like you to process my refund as soon as possible this is very tiring.