Cecil Bello has stumbled into a new corner of the credit squeeze. The 32-year-old management consultant has had the limits reduced on three of her credit cards.

In September, U.S. Bank notified the Fairfax County resident that she no longer had a $14,500 limit on a card that had a balance of about $5,000. Her new limit left her just $500 from being maxed out, she said.

Then came an Oct. 26 letter from American Express that said she now had a limit of $14,000, down from $22,000. That letter said her "total debt is too high relative to your payment history with us and other creditors."

Early this month, she received an e-mail from American Express notifying her that another card with a $5,000 limit had been reduced to $3,000 and that her new cash advance limit was down to $200.

Bello said she had made more than the minimum payments on time each month.

"I am taking responsibility for paying off my debt," she said. "But when credit card companies trap people this way, it's almost impossible to dig yourself out of the hole."

Like many other card users, Bello has learned the hard way that credit card companies are increasingly putting the clamps on their customers. Lenders are taking a wide range of steps to mitigate their risk as unemployment rates tick up and the number of delinquent borrowers grows. Besides cutting credit limits, card companies are raising rates and fees, and suspending offers such as zero percent balance transfers. They are also making rewards programs less rewarding and shutting down inactive accounts, said industry analysts and watchdogs.