Apple Music wiped my entire library?

This article describes what happens if you cancel an Apple Music subscription.

How to cancel Apple Music - Apple Support

"After your subscription to Apple Music expires, you'll no longer be able to play songs from the Apple Music catalog. Any playlists added from the Apple Music catalog or created using music from the Apple Music catalog will also no longer be available. If you use Sync Library, it will turn off when your subscription expires. Any music and playlists you had on your device before you subscribed to Apple Music will still be available."

If you were "a little late on your bill" and Apple was not able to collect the subscription fee that you had agreed to pay, when it was due, I wonder if that might also have counted as a subscription expiration.

If indeed you have lost "offline listening" copies of subscription songs, "Sync Library" copies of songs, and playlists containing subscription songs, I don't know of any "recovery" process other than to re-download "offline listening" copies and recreate playlists from scratch once you are again an Apple Music subscriber in good standing.

My bill was due on the 24th and it ended up going through on the 30th, but I was still able to use the app, so the subscription was never cancelled. I suppose they could have stepped in and manually wiped my account, but I’ve never had an issue like that before. If that was the case I’d probably just cancel my subscription altogether instead of trying to find and re-add the thousands of songs I had saved to my library.

“I was a little late on my bill, but not to the point that stopped my subscription”

What exactly does that mean?

My bill usually comes out on the 24th, but I didn’t have the money to pay it until the 30th, so I paid it then, but I never lost access to the use of the app.