Guniwar Clothing — I got defect product and there was no option for return and refund

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From instagram link of guniwarclothing. shop on 10 October, 2022 of Rs. 873 And it read all their terms and conditions and policies of return or refund before placing order and they have written that we can return any product in 7 day period I got my order today and I have chosen COD The order that I received was through Ekart logistics and I requested them to open and satisfy first and then pay but the not allowed me to do so And I have money but when I opened the product it was only a long peice of yellow coloured cloth But I ordered stitched blue salwar Then I went back to the site and when I saw their was no option of return or refund and in the policy their was a G-mail id that was written to place the return I wrote email and sended to them but the E-mail I'd was totally fraud and wrong And I have left with no options and On the bill also their was neither address of the seller nor his GSTIN no... Please kindly requesting to you help me in returning my refund