Hey there! @Hulabandula Thanks for reaching out for assistance with reminder notifications. At this time there is not an In-App way of setting up Push Notification reminders.
Are you using an Andriod Device that you are receiving the push notifications on? There are two android features that come to mind that may assist you further.
Do you have swipe left or right to snooze enabled in the notification settings? You can swipe left or right> Select the Bell Icon> to have the notification pop back up in these intervals: 15mins, 30 mins, 1hr, 2hrs.
Additionally, You can set up Notification Reminders on your Android Device.
To set up a Reminder for a specific application Navigate to the Accessibility Options and Select Advanced Settings> Notification Reminders. Here you have the intervals of 3 mins, 5mins, 10mins, and 15 mins to have the notification pop up and repeat every time those intervals are met.
You also have the option to select which apps to receive these reminders from. However, keep in mind that this would set it for all Push notifications received from the selected app to repeat. If you are only using push notifications for the alarm triggered this would be a workaround with your Andriod Device.
I hope this message finds you well!