Shoppersstop.com — Exchange not Provided by Shopper Stop due to flaw in their system

Address:

Kolkata, West Bengal, 750091

Hi,
I had purchased few apparel items from Shopper Stop(Forum Mall, Elgen Road, Kolkata) on 11th June 2016. One of the items among them - A T-shirt was purchased for one of my cousins who does not stay in Kolkata . So, it was taken away by my uncle on the same day (who travelled back to BBSR ). Since, we had done a lot of shopping on that day, the bill for the particular T-shirt was misplaced. On receiving the T-shirt, my cousin confirmed that the size was not fitting him and he needed the next bigger size. So, the T-shirt was couriered back to me within a week and I went back to the same Shopper Stop outlet to return it on the next weekend.
On finding that I did not have a bill, the Customer service desk(of the Shopper stop outlet) initially denied me outright for an exchange.Then when I insisted, they told me they can check their system for the sale of that brand T-shirt on that particular day(11th June 2016).However, there seemed to be some flaw in the system and they could not find that item being sold. I confirmed them that I had bought that item on the 11th June 2016 (a week back ) and even the Sales Person who had sold me the item recognised me.However, they were adamant that they cannot exchange the T-shirt.
So, basically I have to thrown away a brand new T-shirt bought just a week back since the store is not accepting an exchange.
I am thoroughly disappointed by such poor after Sale Service provided by Shopper Stop . First of all, you guys do not tell the customers about all the possible ways of exchanging a product. Even though there are ways to exchange a product when the bill is lost, still you do not disclose the same to the customer until and unless pressed upon very hard . Then when the sale cannot be identified due to a flaw in your system, you simply deny the Customer for exchanging the product.
Hoping to receive at least an explanation/solution to this issue from your end as early as possible.In the absence of a response, I would be forced to post this complaint against the Shopper Stop Social MediaTags (Facebook, Twitter) . I would also warn and discourage all my friends and relatives
against this type of pathetic service provided by such a reputed Network like Shopper Stop.

Thanks