Yes, multiple subscriptions are allowed (the unused bundle will add-on to the new Night Pass) as long as there is sufficient credit on your account. The plan will still expire at 5am.
To find out more, please chat with us by clicking here or send us an email CustomerCarePNG@digicelpacific.com or go to our Digicel PNG official Facebook page by clicking here: DigicelPNG Facebook. Our operating hours are from 8am to 9pm every day.