General Mills Canada and Metro have a new promotion just in time for back to school! Spend $20 on participating General Mills products, and get a free retro lunch box.

Your products must be purchased in one transaction before August the 31st, 2018. You can then take a photo of your receipt and upload it by visiting the link below. To ensure that your receipt is easy to read and therefore approved, you may want to consider submitting a receipt with only this purchase on it.

You will receive your receipt validation by email once it has been approved, and your lunchbox will then be on it’s way! Your purchases must be made at Metro, and there are a total of 500 lunch boxes available, and it does not say there is a limit of one per household. It looks like multiple entries per household are permitted, just in case you wanted more than one.

Click here to upload your receipt.