Charged for a Free Trial

what vendor promised one month free?

A free trial to Creative Cloud is 7 days only, afterwhich you are billed until you cancel. 

Log-in below
https://account.adobe.com/plans
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How do I Cancel my Subscription?
https://helpx.adobe.com/manage-account/using/cancel-subscription.html
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Subscription & Cancellation Terms:
https://www.adobe.com/legal/subscription-terms.html

CONTACT ADOBE SUPPORT:
================
Online Chat: https://helpx.adobe.com/contact.html?rghtup=autoOpen
Twitter: https://twitter.com/adobecare

Hope that helps.

One month of what?

The trial for programs is 7 days and you must cancel in 14 days or your trial becomes a subscription

This space is provided by Adobe, but this is not Adobe support
Sorry, nobody here can help with an account or payment problem
This is a public forum, you need the link to Adobe support, not other users
Help Center https://helpx.adobe.com/support.html is a good place to start
Be sure to remain signed in with your Adobe ID before accessing the link below
Do be aware that wait times are sometimes long before an agent responds
.
You MUST make sure that your browser does NOT block ads, scripts, or pop-ups
You MUST also allow 'cookies' in your web browser for the link to work
This will NOT work if you are using a VPN
.
This link will go directly to the chat option
https://helpx.adobe.com/contact.html?rghtup=autoOpen
Type "Agent" in the chat box to bypass the chatbot and be connected to a person
-Meaning type in the word Agent in the lower right, without the quote " " marks
or
Twitter tweet @AdobeCare
.
Adobe does NOT do support by email, so beware of answering anyone who sends you a private message
-click for more information about scammers https://tinyurl.com/10791730