I received a “warning” insinuating that my Amazon account would be suspended for a bad review of a product that offered me a gift card for more than the value o

I received a “warning” insinuating that my Amazon account would be suspended for a bad review of a product that offered me a gift card for more than the value of the product in exchange for a screenshot of my 5-star review. I am not sure what to make of this, I have considered that possibility the company has an employee on their payroll.