Amazon India — refund not at received

Address:

Kothapet,Guntur, Guntur, Andhra Pradesh, 522001

I placed order blackberry q10 battery on 18/06/2019, order no:#[protected] for guntrur seller took the order and after two days seller cancelled order without information because undelivered address. Till date i'm not received any refund amount. Please find the attachments of cancelled order & my account statement.
1. Undelivered address why seller took order without cash on delivery and why seller cancelled order without customer information and still it showing it can be deliverable for pin no 522001. Please check it in amazon site.
2. Now amazon people saying from our side we transferred amount 800/- you please contact to your axis bank. But i'm not at received i given proof attachment. How can i contact bank. That's amazon responsibility to give back refund without any problem to the customer. Please do the needful.