Indian Bank — return money

Address:

24 FLOOR GRD 272A SANTOKH MANSION, BARRISTER NATH PAL MARG MAZGAON, Mumbai City, Maharashtra, 400010

I've ordered a phone from Amazon by making payment of 10, 499 through Indian bank. I've cancelled the item and Amazon initiated refund on [protected] with return reference number 864170 !!
: I visited branch for solution but branch has no answer.
I contacted Amazon they requested to file charge dispute with Indian bank customer care.