If you're new to Rakuten, you can get $40 deposited into your account for free simply by making at least $40 in purchases through their site within 90 days. You can make multiple purchases at multiple stores, you just have to spend at least $40 total within 90 days. You'll then get paid $30 either by check or PayPal.
This offer is valid through September 26, 2023 at 11:59PM ET.
Rakuten is a cash-back shopping portal that pays you a rebate on purchases at thousands of online retailers. They pay you anywhere from 1% to 20% cashback on your purchases, depending on the store.