I read that if you do that you can't sue.
Not so anymore and they also no longer ask for CC info either.
Adjusted the TrustedID Premier and Clarified Equifax.comWe’ve added an FAQ to our website to confirm that enrolling in the free credit file monitoring and identity theft protection that we are offering as part of this cybersecurity incident does not waive any rights to take legal action.
Clarification Regarding Automatic Sign-Up to TrustedID PremierWe are not requesting consumers’ credit card information when they sign up for the free credit file monitoring and identity theft protection we are offering to all U.S. consumers. Consumers who sign up for TrustedID Premier will not be automatically enrolled or charged after the conclusion of the complimentary year of TrustedID Premier.