The bizarre thing about this is that your printer might even refuse to print with legal, full ink cartridges simply because an online subscription ended. Seems rather wasteful to me. You certainly can never empty that last cartridge.
What I did NOT sign up for is return envelopes lost, replacements disappearing into the void, ink running out. As a service, it has seriously let me down.
They can't have it both ways. Either I'm subscribing to the ink and I get the ink, or not.