Shoppersstop.com — Not getting my refund back

I had initiated an exchange on order #[protected]. The product was picked up on 26 Oct 2020. I did not get any update from them after pick-up. I wrote to customer care on 7 Nov. On 12th Nov they informed me that my requested exchange item is not available and they will initiate a refund in the SS Wallet. I asked them to refund my money to the original mode of payment. They have not refunded the money back yet. It is not available on the SS Wallet either.

I reached out to customer service via ph. The representative said that I will get a link in my mail to update my bank details within 48 hrs for refund money. I haven't got any mail even after 3 days.

They create a ticket every time I speak to customer care:
CAS[protected]V4W4M8 CRM:05479425
CAS[protected]P3N3J9 CRM:05470343
CAS[protected]H8R9W8 CRM:00012662

They always give automated responses. The product amount is 899/- This is a total scam. They have received the product back and not refunding the amount to my original mode of payment. A total fraud website.