Third-Party
Not a bad deal considering there doesn't appear to be a minimum spend requirement and you are essentially getting free money (if you were going to use a credit card anyways)
Note: Offer is not visible to Cashrewards Max users, you will need to log out or view in incognito mode to see offer.
$340 for literally nothing and the card only needs $50K income and allows a $3K min limit, will give it a shot.