Re enable push notifications on settings screen

I have a notifications screen for users who wish to opt in to certain types of notifications. They can toggle a switch for specific things such as daily promotions, weekly drawings, new products, and a couple others.

Upon first launching the app they get the alert (screenshot below) asking if they want to enable or disable them completely.

If they choose not to enable notifications, but then later they go to the notifications screen and try to enable some of the notifications switches, it wouldn’t do any good bc they’ve disabled them at launch.

Is there a way to tell onesignal to see if they’re a subscribed user, and if not, to prompt them again if they wish to start receiving notifications again?

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