Mine is a one-off payment :( They just forget they paid for it, plus the company name isn't the same as the app name, so they just go "welp, someone must be stealing from me!" and request a chargeback.
Anyway- turns out that on the rare occasion someone’s had an issue, this gives them a really easy mechanism to write to me and tell me about it. They let off their steam in the email and then we make things good together. (Yet another reason why I always oppose noreply email addresses)
I still don’t know what or where the setting is, mind.
It does have the description of what you're buying ("Dead Man's Switch subscription") but I don't know if that gets to the bank statement.