Returned call got message saying I had got a call for fund raising purposes. How do I block them? I am on the do-not-call register!

I am getting the same but don't answer it

Received a call from this number today @ 5.28 pm - the traditional time for scam merchants. Luckily it went unanswered.

They've called me too but I'm not home and they never want to leave a message, all mum understood from them is that there from a finance company, must be a advertising place of some sort.

I keep getting calls from this number up to 3 times a day. I don't know the number so I don't answer it but they never leave a message.

had few calls from number starts with 02852459 34 or 38 or 40 last couple of days, when we answer, there's just silent at the other end