As we mentioned earlier this week, credit card rewards programs can be overly complicated and come with rules and limits that drain their value. Now the Consumer Financial Protection Bureau says it is looking into these programs to determine if cardholders are being misled about the costs and benefits of these offers.

In an e-mail to Bloomberg News, CFPB Director Richard Cordray wrote of the “detailed and confusing rules” for credit card rewards programs and said the Bureau “will be reviewing whether rewards disclosures are being made in a clear and transparent manner, and we will consider whether additional protections are needed.”

At issue is whether consumers understand what it actually costs to earn the rewards — whether its airline miles, retail discounts, cash back, or some other benefit — that are advertised by the card issuers, and whether these companies are being transparent about the limits on using these rewards.

While many banks ditched debit card rewards programs after new legislation limited the amount of money the card issuer received for each retail transaction, the programs have remained on credit cards as a way to entice consumers into charging more, thus earning more rewards while also making it more likely that the cardholder will carry a higher balance.

“To what degree does something have to be a problem before we take a look at it?” asks Pamela Banks, senior policy counsel at Consumers Union. “We should identify trends early.”

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