I.e random example: https://www.reddit.com/r/iphone/comments/1cdsqpf/the_final_u...

It's not a significant percentage (rounds to 0.00%) but it does happen if you're unlucky. One of the ways it can happen is what I wrote: have a plus subscription, have your card expire and don't respond to Apples warning that you'll get banned unless you update your payment details.

If you don't, your account is gone after a few weeks.

It's certainly reasonable from Apple's PoV, the customer isnt paying their bills and not responding to their mails. You just get the occasional person that gets fucked by it because they're indisposed, possibly even by injury/hospitalisation or just not checking the mail address they've registered with etc.