"Highly Reviewed" and it comes with a "leave a 5 star review for a kickback" offer. A card like that is grounds for returning the thing and leaving a 1 star review IMHO.
Amazon has made a habit lately of rejecting your review if you do that. It's like they want to help these scammers.
Can you delete reviews? An alternative could be to take them up on the offer, post the review, cash out the kickback and then delete the review.
An even simpler alternative is to not accept an offer you aren't comfortable with.