They buy personal data from third-parties and then proceed to make unsolicited calls constantly.The last caller was from a Dublin number claiming he was called Michael but spoke with a heavy foreign accent. When I explained that I was not interested and to remove my details from their system he responded with "who the fk do you think you are talking to?" and then hung up.Obviously scammers and linked to other dubious "investment sites". Like other reviewers on here, I have also been bombarded by calls from various UK numbers, mostly London, and they do not stop. This has been going on for months now.I have already reported them to Comreg and am seriously considering taking legal action.