Caseworld.in — product not delivered - prepaid order

I had ordered a one plus 6 cover worth 899/- as prepaid order. The quality of the product and the colour as described in the image were totally different, i wanted to return the product but the company confirmed that we don't credit back the payment (Nowhere mentioned in returned policy) rather we would issue vouchers or replacement with different colour. I continued to go with the colour replacement, its more than 2 days the reverse pick up was done by your scheduled delivery person. Now the company is not responding on phone numbers provided on website and has neither confirmed any dispatch details of the replacement package.