Vasanth & Co — vu led tv desktop part missing/ not fitting

Address: Chennai, Tamil Nadu, 600084

After 3 days (Due to pongal festival) since we ordered the vu led tv 24lj3, uv technicians came for installation and they found the desktop stand for the tv was not fitting and they told to contact vasanth &co for the issue. As contacted they sent another stand which also didnt fit. Next day another technician found one part is missing in it.
How can a part of the product will be missed in a sealed company's product?? Or how can the manufactured part of the product doesn't fit??
There is no proper response from the delivered person regarding the issue.
I'm not satisfied regarding the purchased product and the issue in it. Because of this i'm doubt of the inside product's quality.

I'm looking for a complete replacement of the product with complete fitting parts and sealed one from the company. Is this manufacturers defect or delears?

Billing name : rani purasaiwakkam
Invoice numb:[protected]
Branch: vasanth& co, purasaiwakkam, ch-10