Never give your credit card number or expiration date to anyone over the phone, unless you initiated the call. Even if the person on the other side tells you that the information is being requested for security or "verification" purposes, do not give this information to anyone until you are sure the person is not an impostor.
Never lose sight of your credit card.
Prevent collusive merchants from printing two receipts of your transaction.
Sign your new credit cards immediately upon receipt.
Never leave the signature panel or line blank, since this allows criminals to forge your signature on the card and transaction receipts. Trace a line to render the space unusable.
Always review your card account statement and match the transactions listed on the statement to your transaction receipts to detect any discrepancy immediately.
Notify your card Issuer immediately in case of error or fraud.
Submit any claim related to an unauthorized charge in writing.
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