Checkout51 posts new offers Thursday morning at 12:01 and they are active until 11:59 Wednesday night. The offers must be redeemed within this time frame. (For example, if you purchase something eligible for an offer on Wednesday, you must upload your receipt before Wednesday night to be eligible for the rebate).
Redeeming rebates is easy! You just upload your receipt, and select the active offers that you purchased.
Once you reach $20, you can cash out your earnings. You receive your earnings in the form of a check in the mail; which usually takes 1-2 weeks from the time you request your payout for it to be delivered to your mailbox.