Have sign on door asking for no cold callers, sales people, or religious or political canvassers. I'm disabled. Someone came to my door in a hi vis with BT on back. I went to window to say no. I had to repeat 3 times. Contacted BT. And BT have said they don't send people to doors, it's a 3rd party and usually Money Expert. Stop knocking if there is a sign on door. It's illegal to not read it. I have the sign fora reason, I'm physically disabled and don't want to be disturbed and hurts to keep getting up. I only answer my door to people I'm expecting and parcels.