Amazon India — refund of the payment is not initiated

Address:	35/V/1 Middle Road,(Ground Floor), Santoshpur, Kolkata, West Bengal, 700075
Website:	www.amazon.in

Order date : 01-oct-2019
Order no. :[protected]
It is a pre-paid item, pilot fountain pen of inr 1245.0

Initially the date of delivery was 7th october however three time amazon changed the date of delivery and i still today (9th of nov, 2019) my order is not shipped. Now the use of the above mentioned product is irrelevant to me. I want to cancel the product and get my money refund. Unfortunately very cleverly the amazon deactivated the option for cancellation. I called at least four time (21st, 25th and 31st october and 9th november, 2019) to the customer service centre of the amazon. Each time they have answered that payment refund will be initiated within three business days. Today early morning, around 2:00 am i called and got the same repetitive false hope. Amazon cheated me.
Please look into this and let me help to get my refund.
N. B. Details of my order and proof of the contact to the customer support section are attached.