Home Centre — sent me wrong and cheaper product of someone else's order and refuses to rectify it

Address:	Kolkata, West Bengal, 700107
Website:	Yes . homecentre

I had ordered a "happiness mug set (4pc)" online from Home centre,
my order number being
[protected].

I received a shipment with my name on the package around 18th June 2018. It was a COD and I paid rs 749.
On opening it I found a red bottle ( priced rs 299) and a bill in the name of Mr Asif Ali.

I immediately informed them via the chat option on their portal and also got a sorry as reply.
I tried to call their number but it went unanswered.
I can provide the copies of the bills and the screenshot of the chat.

Kindly see to it that I receive my mug set, which I have paid for in exchange of the said bottle.. Which they refuse to do despite several emails and face book intimations.