Vijay Sales — Installation charges <> wrong help

This was one of the brands that I always looked forward to but they have become cheaters and the worst of the brands.

They took charges from me for installation and then refused to do it . After multiple follow ups they sent the person and did wrong installation. I have been telling them to take the product but they have not been budging to do that. They are one of the biggest cheat that one can go to !

Can you please help.