In these cases, I've had good luck just emailing them with a clear notice that I'm cancelling my account (and telling them I think it's rude not to support canc

In these cases, I've had good luck just emailing them with a clear notice that I'm cancelling my account (and telling them I think it's rude not to support cancelling via the same media used to sign up). I'm not going to go through your manipulative user-retention flow.