Total Shopping Network - duplicate product

A representative of Total Shopping Network came and informed me about their membership drive and the lucky draw contest via a scratch card. The condition of getting a scratch card was that you have to submit ₹*** which will not be refunded if you win something big in its entirety and will be refunded if you do not win something in its entirety or something small for example, mixer, iron. The one thing that was the attraction of this proposal was that you will be gifted a oneplus headphone regardless of the outcome of the scratch card. I agreed to the offer eyeing the oneplus headphone. on unveiling the packing of the headphones it came to my knowledge that this was a fake product. Oneplus does not manufacture this or any other similar kind of headphones. When i contacted the branch, it accepted that it was a first copy product.