When it comes
The reminder comes once a day at the time you chose, in your own timezone, and only if today is not logged yet. Check both the time and the timezone in Settings.
Each device needs it switched on
The reminder goes to each device where you switched it on. On a new phone or another browser, open Settings there and choose Send it to this device too.
iPhone and iPad
On an iPhone or iPad, a reminder can only reach chastity.report from your Home Screen. In Safari, tap Share, then Add to Home Screen. Open it from there and switch the reminder on.
Still nothing
If notifications are blocked for chastity.report, allow them in your browser's or phone's settings, then switch the reminder on again. Focus modes, Do Not Disturb and battery savers can hold notifications back too.
A reminder that cannot be delivered within a few hours is dropped rather than arriving late. If you would rather have an email, switch on Evening reminder by email in Settings, under Email.