I just received a call from this number now, I didnt answer as I was at work. But looking back at everyone else's comments, it sounds like it might be the same number that I had trouble with a few months ago. I received a call while I was working late and some guy started talking about pay as you go and switching to a new contract or something, he seemed to know a fair bit about how much I spend on my phone etc. So I thought it could be genuine, I explained I was at work and wasnt free to talk. He said it would only take 2 minutes so I humoured him, 20 minutes later he then went on to ask me for my !!!Bank Account Details!!! so we could set something up. I dont like handing out my details over the phone unless i make the call and know who I'm talking to is genuine. So I said I didnt have my account details handy at work but told him to phone back later when I would be at home, I didnt pick up, but received calls everyday for around a month and a half after that. None of which I picked up! I wouldnt answer it just in case, or at least dont give out any details!!