Cancelamento de programa sem multa

You did check the "30 days free stock subscription" and you did not cancel, when cancel was due. If you are still in the 14 days of your paid stock subscription, you can cancel and get refunded (https://account.adobe.com/plans). If you are past these 14 days, best is to do as @kglad said. If you did not use the stock subscription, I think that Adobe is normally very supportive to cancel without a fee and eventually to refund the payment. You need to ask insistently, but very friendly (just as a tipp). If you accept a free extention, don't ask again. 

BTW: you can't selfcancel when there are payment issues.

explain to adobe support. there are 3 ways to contact adobe; chat, 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

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in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.

<moved from using the community>