Sorry for the frustration, we've sent you an email to try to resolve this.
You can do that here - https://seekingalpha.com/account/subscriptions_settings - or email us at firstname.lastname@example.org
I tried both things you listed. The first one takes me to the seekingalpha.com web page. The second one shows "no results found" on email. Please tell me something that works. This is bull shit!
Customer support service by UserEcho