In one of their forum posts we found this statement from the staff: "We are always sorry to know when our esteemed members wish to terminate their accounts. We respect your privacy. To ensure that we terminate the right account, you need to send us an email from your registered email id to firstname.lastname@example.org with an account termination request.".
A bit shady, so greylisted for now.
Cancellation/Removal Form (third party service)
If you signed up for SMSFi using a third-party login such as Facebook or Twitter, you probably want to revoke all access from SMSFi. Click the icon below to find out how.