If you're having issues receiving notifications on your iPhone/iPad from Progressier or another push service, it's very likely your device is configured to block these notifications. Here are some common reasons for this:

Before iOS 16.4, iPhones and iPads were not compatible with push notifications from web apps. To ensure your device is running iOS/iPadOS 16.4 or later or update it, open the Settings app, and navigate to General > Software Update.

Open the Settings app and scroll down to your installed apps. If you've allowed notifications from a PWA, you'll find it in the list. Tap on your app (A) and then open the Notifications settings (B). Make sure Allow Notifications (C) is enabled and that Alerts are configured to show on the Lock Screen, Notification Center, and Banners.

Certain iOS modes can prevent notifications from being shown. Open your device's Control Center and ensure Airplane mode (A), Focus mode (B), and Silent mode (C) are all turned off.

In the Settings app, tap on Notifications (A). Make sure that Scheduled Summary is "Off" and Show Previews is set to "Always".

Ensure your device has more than 30% battery. Then open your device's Settings app, and scroll down to Battery (A). Make sure Low Power Mode (B) is disabled.

Open the Settings app, then scroll to General (A). Open iPad Storage or iPhone storage (B). Check that your device has enough storage space left (C). If your device is low on storage, it may offload some of your apps. Free up some by deleting unused apps, and try again.

Open the Settings app, then scroll to General (A). Open Background App Refresh (B). Ensure that the functionality is enabled (C).

In rare cases, your network (especially if it's a corporate WiFi network) may have built-in firewalls that interfere with the proper delivery of your push notifications. Try allowing notifications from a different network.

If you've done all of the above and you still can't receive notifications, reinstall your PWA and reallow push notifications.