James Jones, consumer affairs manager for Experian, noted: "Regularly switching cards and making the most of introductory offers might affect your credit record.
"It can make it look like you're desperate for credit, or that someone might be using your details in identity fraud," he warned.
He also advised that consumers should close old accounts once a balance is moved, in order to reduce the number of open accounts they have against their name and subsequently lower the risk of ID fraud.
According to credit information provider checkmyfile.com, 1.6 million UK residents are not registered on the electoral role, one of the primary sources of data used by car lenders to verify personal details of potential borrowers.
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