If you have automatic reminders enabled in a petition and you want to deactivate them, follow these steps:
1. First, select the petition in which you want to disable them.
2. Go to the Activity tab.
3. You will see that the recipients of the template appear in this tab and next to each of them, three icons.
4. The middle icon is the button for Reminders settings.
5. If you select it, the following window will open. You must deselect the Enable automatic reminders button and Apply changes.