Please go to Adobe Customer Service (make sure to sign in to your Adobe account first and allow popups on your browser) and only ask to have your activations reset: https://helpx.adobe.com/contact.html?rghtup=autoOpen will automatically open the chat window. Type "Agent" in the chat box to bypass the chatbot and be connected to a person.
I suspect you ordered a subscription with your credit card and neglected to cancel within the 14 day grace period. Now you're being billed for what you ordered. Why else would Adobe have your credit card #?