APPLE TV+ device login error
I'm trying to login on my LG smart Tv in the appleTV+app. It then takes me to a sign in screen with a QR code I scan it it asks me for an apple id password etc. I enter all the details, receive a code, enter it then it asked me to enter code of device I do that. It then tells me I need an iTunes account.....what! So I login to apple id I'm logged in, I log in to iTunes I'm logged in, I then do all the previous thing again and get same message. Even in apple id when I'm logged in I go to devices it tells me I need to go to device and set it up for it to appear.vwhich is what I've been trying to do. I've been paying this account for ages and can't seem to login anywhere for the last 5 months.*** loosing my marbles. HELP PLEASE I BEG YOU.