What happens to netball players when they continue to foul?

Answer 1

In the event of dangerous play, severe fouling or other misconduct, the referee may, in addition to awarding a penalty throw, warn a player, send them to the sin-bin for a standard time of 2 minutes or for a specific time pertaining to the discretion of the referee; or send the player off. Players sin-binned will be recalled to the field of play only with the consent of the referee.

Usually, a player sin-binned for the 2nd time will be treated as if 'sent off' for the game.