Are you referring to liking an item or review? There is a limit to Facebook likes. It's 20. However, I am also having problems with receiving points for liking. Once in a blue moon, I'll receive my points but the vast majority of the time, they are simply NOT popping up (or giving them to me period). It's most certainly not because I've reached my limit. I've only liked a few! And it will not work and then suddenly work and then not work again. Something is obviously wrong.