Coupon Misprints Could Cost Casino Millions

A misprint may end up costing an Illinois casino millions of dollars.Harrah's Joliet Casino said there was a mistake in about 11,000 coupons mailed to customers last week.

Instead of being worth $15 or $20 apiece, each had a face value of $525 in cash.

The company blames the error on a third-party vendor.Dozens of gamblers crowded Harrah's customer service desk on Friday, and got angry when the casino refused to redeem the coupons. Customers were encouraged to trade the coupons for reward points. Some did, but others decided to keep their slips of paper.

The Illinois Gaming Board ruled that Harrah's must honor the coupons.

All told, the company could be liable for as much as $5.8 million.