Bad service

I have a 70" Samsung smart Tv that switches off everytime it wants to and now for tje past 2 weeks i have been trying to switch it on and it isnt working i even logged a call for a twchnician to come through and i was told i will get a call from a consultant that it never happened, a call was logged on the 7th November no one ever came back to me with an update or a follow up and i called in to check whats happening with a technician they said will come and asses and i was told my call was closed because the service centre was fully booked and i was never advised about any of that and this morning i called again a consultant said they ordereed the parts that are needed to fix my TV and asked which parts because there aas ko assesment done on the TV and still havent got proper feedback about whats happening and if its unfixable please come collect it cause it doesnot help having a dormant screen as i can say the TV was expensive for nothing it doesnot give out the Quality view that it was paid for.... Referrence no :*** isbthe one they saying it was cancelled. Can someone whi knows their story by Samsung attend to my call😡😡😡😡