Amazon.in — payment not yet refunded

Address:

Krishnagiri, Tamil Nadu

I have made the payment of rs. 399/- to amezon for mobile recharge, but the recharge was not successful, so amezon has returned the amount to my canara bank account vide following ref number
The authorization code (Refund reference number) for the transaction is [protected].

As per amezon the payment should credit within 21.01.2019, but while speaking with bank customer care they are telling it will take 45 days.