It's getting ****ing ridiculous now . I get 4 or 5 of them a day and they are ****ing annoying. As soon as I hear that "Hello, this is an urgent message" ****e I hang up and pitch the phone across the room. I have tried getting them blocked but it is always a different number so that's no ****ing good. Of course, it's made worse by getting a call at 9am when I am working nights this week. It's making me crabbit
Telephone Preference Service should do the trick - http://www.mpsonline.org.uk/tps/index.html If you are already on the TPS, then go to http://complaints.tpsonline.org.uk/Consumer/ and that should make them stop.
Get a phone with caller display on. Very few of these dodgy calls display a number, just ignore it if no number is displayed. If you have friends who are ex directory, just work out a code system with them.