I have asked a moderator to provide assistance, they will post an invite on this thread.They are the only BT employees on this forum, and are based in the UK.
Welcome to the Community and thanks for your post!
Sorry for all the problems you had placing an order for BT TV and for the error messages you're getting now that you have everything connected. You can send us your details as we can help you.
I have sent you a private message with instructions on how you can send us over your details and we'll look into this for you. See: Private messages