Hi and Welcome. My Name is ***** ***** I look forward to assisting you today with your question.
It is possible that either someone has changed the credit card info on your Apple ID (if you are sharing it or it got hacked) or that is a SCAM/Phishing email. There are lots of scam emails like this and ask for your personal information like User ID, password, credit card info etc
So first of all, I'd recommend to reset the password ***** your Apple ID from here --> https://iforgot.apple.com/password/verify/appleid
Resetting the password ***** your account secure. After resetting the password, I want you to make sure you have correct details on your account (like security questions, answers etc) via this page --> https://appleid.apple.com/
You can also check your payment details there. Refer this article --> http://www.apple.com/legal/more-resources/phishing/
Note : Do not click or follow any websites or links from that email. Only change the details from the official website links above.
If you have any questions or would like any additional information, please don't hesitate to ask.
If you are not satisfied with the service I provided, please don't rate me bad or poor or ok. Instead, please let me know and I will try my best to help you until you are satisfied