Amazon India — EMI not converted & now amazon refuses to take ownership of failing so..

Address:	Bangalore, Karnataka, 560048
Website:	amazon.in

Purchased phone under EMI for 6 months on 20-Jan-2017.
But my Feb statement dint show amount converted to EMI..
On contacting Amazon i was assured that they have confirmation from bank that transaction is under EMI & will reflect in my next statement.

But till date EMI is not converted & my bank also confirms transaction was not under EMI.

Now Amazon refuses to take my complaint stating that i need to contact bank for EMI conversion & they cannot help me.