So yesterday I sent 3 online forms to 3 different companies (not comparison webistes) to get 3 quotes for a particular service. First I had an email and a call and I thought: good, people are getting back to me. To my surprise, today I started to receive many more calls and emails. Forms didn't say anything about passing information to 3rd parties. Now I'm trying to determine which one/s did it.
Learnings: use different (fake) names so you know who screws you