Parents can sign up for Modak and request the Modak Visa debit card for the GenTeach summer camp from April 1st, 2025, to July 31st, 2025, 11:59PM EST. They must do so at least 15 days before the camp begins to receive the physical card on time. However, they can still open a Modak account with their kids anytime, even up until the day before camp starts, and use the digital card.