Amazon India — money not refunded after vigorous followuo

Address:

Nagpur, Maharashtra, 440009

I purchased ex calibur shirts from amazon.in but the quality being very poor i returned it on 24th october, 2017. The after till today i called the customer care 4-5 times but every time they assure me that the refund will be done. They literally tell any fake reason for the delay every time i call them.
My order no was
[protected].
I am also attaching the return receipt which i already sent them through mail on their mail id [protected]@amazon.in from my registered mail id mp. [protected]@yahoo.com