You don’t have to show a proof of purchase to claim $15 in a class action lawsuit against Kellogg. Just be someone who bought Kellog’s Rice Krispies or Cocoa Krispies between June 1, 2009 and March, 1 2010.

The lawsuit contends that the cereal maker falsely advertised that the two cereals supported your immune system even though it didn’t have adequate data to back the claim.

Kellog settled a similar lawsuit last year over its Frosted Mini-Wheats, which claimed to “clinically improve kids’ attentiveness by nearly 20%.”

You can get $5 per box you bought, up to 3 boxes per household. Get and submit your online claim form, attesting under penalty of perjury that you did indeed buy the cereal, at cerealadvertisingsettlement.com.

[CerealAdvertisingSettlement.com via TopClassActions]

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