Charged for cancelled Photography plan (20GB) plan

you'll have to contact adobe support and make your case.

Is there any possibility you have a second account under another email address?

https://account.adobe.com/plans

Be sure to remain signed in with your Adobe ID before accessing the link below
Do be aware that Adobe's staffing is impacted by the Covid virus, so wait times are long
.
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
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This link will go directly to the chat option
Type "Agent" in the chat box to bypass the chatbot and be connected to a person
-Meaning type in the word Agent without the quote " " marks
https://helpx.adobe.com/contact.html?rghtup=autoOpen
or
Telephone https://helpx.adobe.com/contact/phone.html
or
Twitter tweet @AdobeCare
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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