Paytm — Product(Wellon water purifier) delivered to wrong address & unknown person!!!

Address:

Bangalore, Karnataka

ORDER ID NO. [protected]
Yesterday in afternoon I got a mail stating that my order delivery is successful, but I did not receive any product nor I got a call/SMS from courier company before the delivery of product.
when I called & asked paytm care they are telling that, product is delivered to some unknown name, I really dont know to whom the product is delivered please look into the matter soon & either deliver the product to me on my address or initiate refund very soon ...