Please check if your Notification Settings are set correctly first.
1. My > My Settings > Notification Settings
2. Notification Settings on your device
Notifications may be delayed or not received properly depending on your network or Wi-Fi connection.
Please try the following when you find notifications got delayed or were not received properly.
1. Delete any unnecessary apps or data on your device.
2. Restart your device.
3. Update your WorkDo to the latest app version.