No nice guy, Citigroup. Determined to get into the debit card business in a big way, Citigroup has been sending letters to its retail customers informing them that their ATM cards will be replaced by debit cards.

A number of customers reacted very negatively to having something they didn't want shoved down their throats. "They told me that my ATM card would be cancelled on a certain date without even asking me if I wanted to change," says an irate New Yorker.

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