Third Party Marketers

The ask: How can I stop Telus from giving my contact information to third party marketers in the first place?!  

The rant: I should not have answered the phone, but I did.  Third party marketer for Telus signed me up for packages without my authorisation resulting in me having to spend four hours on hold, on the phone over two day then another hour plus actually talking with agents to get the contract reversed, and then to try to get the equipment Telus sent by FedEx recalled.

Surprise, they didn't think they could, so it is still on the way "just take it to the post office to return it", no, you can send someone.  It is a crime, it is fraud, but no one in the call centres actually seems to care or be able to get me in contact with someone that can actually do something.