how on earth does one unsubscribe

in addition to chat discussed by @Rashmi27002770wxve, there are 2 other ways to contact adobe; phone and twitter:

chat:
use a browser that allows popups and cookies, and click here, https://helpx.adobe.com/contact.html?rghtup=autoOpen
in the chat field (lower right), type AGENT
be patient, it can take quite a while to reach a human.

phone:
https://helpx.adobe.com/contact/phone.html

twitter:
tweet @AdobeCare

p.s. if you're contacted by anyone (via email or private message), it's much more likely to be a scammer than an adobe representative. ie, double check for an employee badge if contacted in the forums and look for an adobe.com domain in the email address if you click reply to an email. then check again and be very suspicious. any other method of contacting (or offering to contact you) is almost certainly a scam, https://community.adobe.com/t5/using-the-community-discussions/staying-safe-in-the-adobe-support-community/td-p/12919684/redirect_from_archived_page/true

Hi there,

Happy to help!

Firstly, I’d like to sincerely apologize for the inconvenience you had to go through. That should never have happened, and I completely understand how frustrating this must be for you.

We have checked your account and we see that you have no active subscription under the email address associated with the community.

Please log in to the Adobe account and you should be able to see all the active plans.

https://account.adobe.com/

Kindly, check if you may have signed up with Adobe with an different email address.

Also, since this is a community forum, we would request you to contact our Customer Support team and discuss any billing or refund related issues and you will get all the help you require in order to resolve the issue.

We are happy to share the link that can help you to connect with the Adobe Customer support via chat.

Please make sure that the browser that you are using is updated and allow popups and cookies on your browser.

https://helpx.adobe.com/contact.html?rghtup=autoOpen

Please do not share any personal/confidential information like email ID, bank details, etc here. This is a public forum.

Hope the information was helpful to you. Please let me know if you have any further questions.

Sincerely,

Rashmi Swain