To manage your credit card effectively, keep usage below 30% of the limit, pay the balance in full to avoid interest, and report any fraudulent charges promptly.
To increase or maintain your credit score, keep the usage of the credit card at or below 30% of the limit. To avoid paying interest, you must pay the balance in full every month. If you find a fraudulent charge on your credit card statement, you should call the credit card company as soon as possible.
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