@Car requested a notification via email when the territory rent is due at least 6 months ago and we still didn't get to it (ticket).
Since I am more embarrassed of that than to offer the following, I am offering the following makeshift solution:
Send an email to ek@stacker.news if you want to receive an email notification when your territory rent is due. Please include the territory for which you want to receive them.
This way, I know that you want to opt-in to these notifications and where you want to receive them since we don't store emails in plaintext (assuming you even added email as an authentication method).
That's all!
If I am not sure if you're actually the founder of the territory for which you're requesting reminders, I might ask you to add the email you used as an authentication method to your account on SN.