The uptake for credit protection services has been “in line with expectations,” the email said. The 750,000 affected investors who receive a notification letter have until April 30 to register with Equifax and TransUnion, the email said. The regulator began sending notification letters to investors on Jan. 14, including through Canada Post, and it may take several weeks for letters to arrive, the CIRO website says. “Registrants and investors should understand these services are provided as a precaution and in order to help detect possible misuse of information,” the regulator’s email said. “We remain fully committed to supporting member firms, registered individuals and investors as we work toward a comprehensive and appropriate resolution,” the regulator’s email said.