Multiple attempts to contact and fix TV, no joy

So after multiple attempts to contact the support centre, and promises of callback and them knowing the urgency, I am still with a broken TV for over a week now. It seems buying a higher model does not mean you will be buying quality. The online chat don't know what to do. The complaint was pushed up to the major complaints but still nothing since THU?<br> <br> I don't want apologies any more, I want action from Samsung to fix their broken TV's and software or full replacement with something that actually works.