I added a paid plan to test my unpublished marketplace listing, then tested subscribing to the the plan. Then cancelled the plan for my account. Now I want to remove the plan from my app and GitHub says: "Could not delete listing plan: this plan still has subscriptions, which you must cancel before deleting the plan itself "
No one is using the plan. It also implies I have some way to cancel the plan for a user. I see no way to cancel a plan on a user’s behalf. But no user is subscribed to my plan anyway since my app is not even published.