I think your right. I only signed up on Facebook to promote my band and up until then I never had a problem with unknown numbers callng my cell. Now this number phones my cell relentlesly.
I am in Canada and have received numerous calls from this number on both of my cell phones, which I found strange, as one is registered through the corporation I work for and the other is personal. I never give out my work cell phone number, so I'm interested to know how they optained the number and associated it with me (unless it is totally random that they are calling both cell phones, which I doubt).
Also hang ups or no voicemail.
Thanks all for information.