Samsung TV Shows "This Function Is Not Available" Error in Broadcast Menu

For about a week, I have been completely unable to access any broadcast features on my Samsung TV (model QE65Q80TATXTK). Whenever I open the "Broadcast" menu on the TV, the error message "This function is not available" continuously appears on the screen, preventing me from watching normal TV broadcasts.

I have reached out to Samsung via WhatsApp multiple times regarding this issue. Despite receiving repeated automated messages stating, "We will contact you within 30 minutes," no one has called or taken care of my issue. I feel customer service is simply brushing me off by claiming "we couldn't reach you," when in reality, no attempt was made to follow up. I am deeply dissatisfied with the company failing to stand behind its product and stalling for days.

I demand that Samsung immediately reach out to me to permanently resolve the "This function is not available" error on my TV and restore normal broadcast functionality. I request a phone call with a clear update and that my case be handled with proper urgency.