Vigilantibus iura scripta sunt. The laws of the vigilant are written.
This old Roman principle is still valid today. Rights belong only to the vigilant (attentive, alert, careful, diligent), i.e. those who take an active interest in the protection and exercise of their rights and who exercise their procedural rights in a timely manner and with sufficient diligence and foresight.
We will be vigilant for you!