Amazon India — Fraudulent product delivered in the name of freebie

I ordered an Lg 687 lt refrigerator worth 79000 from amazon from a seller named TT enterprises.. and was delivered a cheap 1000 rs worth electric kettle instead. I was told it’s a freebie product and the main product will be delivered soon. Now the situation is the product is showing delivered and there’s no signs of it..
I’ve been calling amazon on a regular basis since then.. even mailed the seller, they’re just giving false reassurances, asking to wait for 3-4 business days after every call. Extremely frustrated with the service. The