DETROIT (WWJ) – Think you’re going Krogering today and getting almost half off your grocery bill?

The grocery chain is saying … not so fast.

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There’s a fake coupon making the rounds on Facebook claiming to offer 40 percent off all purchases.

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“This giveaway is not affiliated with or supported by the Kroger Co. in any way,” say Kroger officials in an online post.

This isn’t the first time the food store has dealt with false promotions making their way onto social media sites. In 2013, the organization posted a warning to customers about an unauthorized “$250 Kroger gift card giveaway” circulating on Facebook.

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Authorities warn: if the deal seems too good to be true, it probably is. If you have questions when you see ‘out of this world’ deals on products or at stores, you can always call directly and see if the online offer is being accepted.