The only way to stop them I can forsee is them losing expensive lawsuits where the outcome is they have to ask your permission first, along with a clearing hous

The only way to stop them I can forsee is them losing expensive lawsuits where the outcome is they have to ask your permission first, along with a clearing house to find out where all of them are so you can check and tell them no - of course they'll try to set it up legally so that if you use your credit card it will indicate default approval or something.