Clarks — Shoes ordered but never delivered

I ordered two pair of shoes from clarks.in and the status has been "Order received" status. They never delivered the product. I paid Rs 5398 for my order. They didn't respond to my email and later blocked my email id. The customer care no is also useless as they never picks call.
I even sent request to them later to cancel my order but again didn't get any response from them