toggle audio on and off change volume download audio Washington Post's Geoffrey A. Fowler speaks with WTOP's Ralph Fox about surveillance pricing.

If you own a rewards card to a department store or coffee shop, you might not be getting as many deals and freebies as you think.

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Retail loyalty cards which offer points, promotions, and freebies from stores such as Starbucks, Best Buy or GameStop can track your spending habits and find ways to charge you more, according to a recent exploration by Washington Post reporter Geoffrey Fowler .

Utilizing California’s consumer privacy law, which allows users

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