Apple would never contact you. Your bank (issuer of card) would contract you. Banks do the exact opposite of the message you received. If they suspect fraud the transaction is stopped immediately. You have to call to verify the transaction, not call to stop the transaction.
“Don't answer suspicious phone calls or messages claiming to be from Apple. Instead, contact Apple directly through our official support channels.”
”To report a suspicious SMS text message that looks like it's supposed to be from Apple, take a screenshot of the message and email the screenshot to reportphishing@apple.com.”
You can report phishing at these links and most importantly your local law enforcement.
Identify legitimate emails from the App Store or iTunes Store.
FTC Complaint Assistant
FBI’s Internet Crime Complaint Center
Learn about how not to be a victim of Social Engineering.
Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support
_______________________________________________________________________________________________________________________________________________________________________________________________________________________
Please follow the steps in this Apple Support article.
If you can't redeem your Apple Gift Card or App Store & iTunes Gift Card - Apple Support
If after reviewing the article, and following the directions in the article, you need additional assistance please follow the link below to contact official Apple Support.
Contact Apple Gift Card Support
If you receive a request for payment using Apple Cash, or If you believe you are the victim of a scam, please contact Apple Support and report it to local law enforcement.
About gift card scams - Apple Support
You may also report the scam to the FTC Complaint Assistant and to the FBI’s Internet Crime Complaint Center