Bata India — Not getting online order refund

Hi,
i have ordered a shoes and due to size issue i have to return it.. But not able to return through Bata website, i called up callcentre they told me there is "Technical" issue.. please send a mail with product Pic. I send the mail then but not get any response from them in 3days, again called up Callcentre they said there is "Technical" issue so they have not able to generate pickup request.. They said they have requested for pick up offline. after 3days again post follow up call shoes got picked up and confirmation mail received. but till 7 days no response for refund..i called up again they said "Technical" issue..they will supposed to send payment link which i didnt get in 20days, i called up 18times to call centre but they are not able to send refund.. i asked them to exchange the shoe or give store credit but they refused ..shoes returned on 6th Apr'22 but refund not issues till date.. thousands of customers money they kept with them and earning through illegal practices.
order id - BW[protected], Ref#234223