Sharing personal data for marketing purposes without consent

Selling and sharing personal data such as phone numbers, ID numbers, insurance details etc. between insurance companies. Not sure how this is legal but it's shocking to know insurance companies willingly sell clients' data to these people. Immediately remove all my details from your system, I am including my number in the review details for you to do so, considering you have it already you should be able to find the rest of my details too.