One of Sprint’s big Black Friday deals was an offer that’d get you three free lines of service. That promo ended on December 1, but if you missed out, you’re now getting another chance.

Sprint is extending its free three lines promotion. Just as before, customers that switch at least one line to Sprint and sign up for an Unlimited Freedom plan with AutoPay can get their third, fourth, and fifth lines free. That means that that family would pay $100 per month.

The third, fourth, and fifth lines will be free until January 31, 2018. After that date, you’ll pay the standard fee of $30 per month per line.

Sprint isn’t saying exactly when this offer will end, only that it’ll be available for a “limited time.”