This is a call centre. Snoop site, want to know the ins and outs of ya backside.
Here is an excerpt from their website.
List Rental Data : Rent our database for 2 weeks or more and you will want it forever!!!
Our consumer survey campaign interviews consumers on a whole range of questions from, charity interest, insurance renewal dates, utility suppliers, sky warranty, interest in lotteries, PPI, PI, pension, homeowner status, age group and many others to enrich the database at disposal. We boast that all the consumers who took our survey have opted in to SO brand.
They obviously do not check the TPS register or they would not have called my number,