In order for your users to receive your push notifications you first have to prompt a notification permission request, you do this by selecting your landing/main page, clicking on actions, add an action, notifications and select request permission, you will unfortunately have to rebuild your app for this to take effect.
Thank you for taking the time to reply. Your suggestion is already in place as per screenshot on the Landing page once a person has signed up and is sent to the Landing page.
Anyone else happy to help? Removed Request Notification Permission on the ‘Home’ screen, added back in and created 3 builds after which have all been approved by Google and Apple; notifications still don’t work