Amazon India — amazon sent me the wrong product and did not exchange it and said it was exchanged

Address:

4 No. Rly Gate, Belgharia, Kolkata, West Bengal, 700056

Dear sir / madam,

My name is suraj gond. I had booked an order from amazon on 3 oct 2019, hanumex green backdrop background 8x12 ft for studio - camera accessory, whose order no. #[protected]. There was a cloth of 8 x 12 feet in this order, but the wrong order was sent to me which was 8 x 10 instead of 8 x 12. There was no leveling or packing of the hanumex brand together. It was just an ordinal product that was sent to me to cheat.
When i complained to amazon customer care, it was confirmed to me that we are sending you a new order whose order is no. Is
#[protected] which you will get in two days and hand exchange will be done with the previous order.
But this order was delayed. And last october 8 i suddenly had to go outdoor due to some urgent work. I called customer care and asked to reset the order. Just a minute after this, i get a message that your order has gone out for delivery.
Then i neither received a call from a courier nor a message from a courier.

I went to amazon's website and checked my order status, then wrote that you should contact the courier in the next or else your order will be returned. When i called about this back in customer care, he said that you can not get this order now. Nor did they give the number of that courier, they said that now you will get the refund after 3 days, but i say i do not want a refund.
When i checked the order status after three days, i found that it was written order was exchanged. When i wanted to call custoimar care, the option of calling is disabled for me. I can no longer call amazon in any way
If you don't call it amazon's cheating, what else?
I want my product and that too the original one.

Regard
Suraj gond
Kolkata