Cold calls to unlisted private numbers

Warning: Judging by the number of complaints recorded here I would like to mention that they are using private and confidential unlisted numbers that they get who knows where and then they call you from a \Private Number"no doubt to ashamed to reflect who is really calling.<br> <br> Where are you getting private unlisted numbers from. They are unlisted for a reason. To get rid of nuisance /spam calls from companies like you. My number is private and no permission has been granted to anyone or organisation to sell such private and confidential information to any other organisation. """