No refund or compensation offered

bought a tshirt from www.jnorss.in i returned it because the size was too big for me. the return was successful because bluedart picked up the product and confirmed it was returned to the seller. the company then shortly messaged me that the product was delivered. but then I checked the website for confirmation but it says the product is on the way for me. i was ready to receive another product as shop credit as per their refund policy. but they straight up ignored me when i tried contacting them via email, whatsapp, instagram, even called them but the number was non existent. i let them know this issue and the said via Instagram account that they'll look into this . its been almost 3 months and still no response from them and I haven't got my money nor the tshirt. when I check the website it's saying that the product is on the way even when after 3 months when I haven't opted for any exchange. it's simply showing that it's on the way and I have to pay again. idk everything was an irresponsible behaviour from them. very bad experience