The wife's been getting annoying spam PFI/PA calls for a while now and a couple of times has found that when she checked her voicemail, the new messages left were from these pests and she'd had to pay for the privilege
of listening to them.
Anyway, she called 150 earlier to explain the problem and disable her voicemail service and was given a £5 credit for her trouble. Well done VM.
Now we just need to find a way to block these morons. Anyone got any ideas?