I cancelled my subscription last month. And just now I automatically paid another subscription fee???

If you downloaded a mobile app from Google or Apple Stores, you’d have to contact those vendors directly.

Did you get any confirmation of the cancellation being successful? You might be subscribed to something else as well. Check the following link to see your subscriptions if any https://account.adobe.com/plans

If you don’t have any current subscriptions and you did get the confirmation you should contact Adobe support via the chat on their website to get this sorted.