This for me has been going on for 2 weeks now, everyday at least 5 times, often in quick succession.
i had tried several to trace "last number called" but it was withheld, until this morning.
All has been quiet since I called back saying I'd had trap put on line or maybe it will start again tomorrow, it's really disconcerting, I hope it will stop.
I recieve on average 20-30 calls a day at all hours!! they leave a blank voicemail everytime and i have answered few times and they dont say anything. its getting past a joke now especially calling during the night. i am ringing malicious calls bureau in the morning that will stop them
I still get these calls....I've added them as a contact "Don't answer - Scam" along with others callers so it shows up clearly and I have also changed the ring tone from normal contacts. Hope that helps some of you..:)