Laying laminate over an uneven Amtico floor

Where many conservatory was fitted, the floor was uneven. We fitted amtico flooring onto the concrete. We now want to fit laminate over the top without removing the amtico due to a re-fit. We are using foam underlay, however part of the flooring is uneven. My question is, if levelling compound is my only option do I absolutely have to remove the amtico flooring where it is unlevel or can I put the compound on top of the amtico - in other words will it stick?