First Texas Savings Association promoted a “$5,000 Scoreboard Challenge” contest. Contestants who completed an entry form and deposited it with First Texas were eligible for a random drawing. The winner was to receive an $80 savings account with First Texas, plus four tickets to a Dallas Mavericks home basketball game chosen by First Texas. If the Mavericks held their opponent in the chosen game to 89 or fewer points, the winner was to receive an additional $5,000 money market certificate. In October 1982, Jergins deposited a completed entry form with First Texas. On November 1, 1982, First tried to amend the contest rules by posting notice at its branches that the Mavericks would have to hold their opponent to 85 or fewer points before the contest winner would receive the $5,000. In late December, Jergins was notified that she had won the $80 savings account and tickets to the January 22, 1983, game against the Utah Jazz. The notice contained the revised contest terms. The Mavericks held the Jazz to 88 points.Was Jergins entitled to the $5,000?