Well, I complained about them never coming anymore, and they didn't. I was looking out the window today and a car parked outside under our tree. Two ladies, one middle aged, one elderly, got out and went to see our next-door neighbours. On their way back, some half an hour later, I intercepted them and asked if I was on their DNC list. They said "Do you want to be?" I said "No, but you never call around anymore" One lady said her husband was in charge of territories and would sort that one out for me.
Before this conversation, I did a little spy work. Here are the two ladies on the neighbour's verandah:
And here is a photo from a less obvious vantage point, across the road, in among another neighbour's bushes!
The arm in the white t-shirt belongs to my neighbour