Royaloak Furniture — Online Order Not Delivered, No Update

I had placed order #ROI0075727 on 16th Oct for a work table and chair with expected delivery date of 30th Oct. I had raised multiple requests on their whatsapp helpline number, but have received no reasonable response till now. Their support email id does not exist, and they don't have a customer care direct call option. I also called their Kolkata warehouse number who is supposed to service my order, but they have stopped picking up calls. They don't allow you to cancel order too.