This is something different I haven’t seen before, so if you requested a free milk rebate from the Kellogg’s cereal offer I mentioned here, these are the steps to actually getting your moola!
First, look in your email for rebate approval with a subject of “Your Receipt Was Approved: Cereal and Milk” from “no-reply@t.kelloggs.com”. Open the email and click the orange “Get Details” button.

Next log into your Kellogg’s Family Rewards account. Once logged in, you should see that you have 1 credit for the free milk rebate. Choose whether you would like your check to be mailed to you or if you would like to receive payment via PayPal.

Free Milk Offer Rebate via PayPal
Allow up to five (5) days to receive your digital rebate into your PayPal account. The amount of your rebate will be the same as your milk cost, as shown on the receipt you submitted (up to a maximum of $4.00).
Free Milk Offer Rebate via Mail
Allow up to eight (8) weeks to receive your rebate check via USPS. The amount of your rebate will be the same as your milk cost, as shown on the receipt you submitted (up to a maximum of $4.00).
After you make your choice, then click the red “Get It” button on the detail (next) page. Fill out your address or PayPal information and complete checkout.