I don't think that's a bug. It sounds like you are asking to be unsubscribed from a mailing list, and they're honoring that request. It's on you to make sure

I don't think that's a bug. It sounds like you are asking to be unsubscribed from a mailing list, and they're honoring that request. It's on you to make sure you're doing that for the proper emails. > without checking where they came from