Canara Bank — amount is not refunded to my account

Address:

Avathi Branch, Bangalore Rural, Karnataka, 562110

Amazon has processed 895rs on 3 rd sep 2019. This amount was supposed to be reflected in my back account within 5 working days but i have not received any money. Your customer care executives did not responded properly they asked me to wait 45 days.
The authorization code (Refund reference number) for the transaction is zntvtgwh0000jzkwhxzv

Thank u
Do the need full.