Caller: 0491 156 400

I have the same experience: they ring and I just let it ring out. I presume that it's a call centre and I make a practice of never answering unknown callers, who presumably want me to sign for some reason or other.

I keep getting calls from this number, but they never leave a message. I presume they want money or want to sell me something.

Think they’re a charity. They keep hounding me, and there’s a long pause whenever I pick up

I called back number 0491 156 400 reached voice mail for a charity company but did not say the name.