What package? You need to be more specific. And not to point out the obvious - of course you'll simply drop off the map eventually if you haven't paid your updates or renewed your subscription. Beyond a certain point you may indeed need to start from scratch because your software licenses don't qualify for updates or usage extensions - no matter whatehr that's free or paid. That's a commonly accepted concept of the software industry for a multitude of reasons.
What exactly did you buy? Some older software can no longer be activated on a new install but without knowing the detail of what you bought we cannot say whether your application falls into that category.
Creative Cloud applications cannot be bought outright. They require a subscription.