The saying is "the devil is in the details" and that is certainly true when it comes to this offer from Harrah's Rincon Casino in San Diego.

This mailer came today for the weekend of June 22/23. This one is for "mystery cash." And the mailer says "each coupon is worth between $300 and $5,000" on each of the two days. So, on both June 22 and June 23 I can claim this offer.

But remember... the devil is in the details. So read on.

Notice the wording on the mailer says "mystery cash" and "each coupon is worth between $300 and $5,000." There is NO mention about free play... only cash.

Now, the mailer does say that to claim this bonus you have to insert your Total Rewards card into any slot machine, then select "accept offer" to start playing. But are they loading "free play" on the machine or are they loading "cash" on the machine that you can immediately "cash out"??