Charged for Adobe stock but not able to cancel

As with sll financal matters, you should act faster, if there are charges that are not warrented. You simply can't sit on that and ask later for ten months refund. 

This said, contact Adobe customer care and see what they can do for you. Adobe customer care can be contacted by beginning a secure chat session at https://helpx.adobe.com/contact.html?rghtup=autoOpen. Pop-up blockers need to be disabled, you need to accept cookies! If the chat window fails to open, or is non-responsive, use a different device and/or browser to start the interaction.

For support via Twitter:
https://twitter.com/AdobeCare

(see also here: https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703 or here
https://community.adobe.com/t5/account-payment-plan/how-to-contact-adobe-support/td-p/11843852)

Important: Adobe does NOT contact you unsolicited by e-mail or direct message. If you get contacted by direct message from a person, claiming to be an Adobe employee, look at that profile and check if they bear the “Adobe Employee” marking under their name. Adobe support does not use Skype to give you support.
If in doubt, ask the forum.

No one in this forum can help you with this account issue. Contact Adobe Customer Service directly. You can reach a live customer service person by typing Agent in the chat icon box on this page 

https://helpx.adobe.com/stock/kb/cancel-membership-subscription-stock.html