MicrostockGroup

I know for a fact that they have changed license type for me from RF to RM. I am not sure if they will change from L to RF though.

The solution is to delete the RM image and reupload as RF because he has the model release. RF image sells at higher prices anyway.

In general Alamy sells RF at higher prices, that's a fact. You can always find exceptions if you look hard, but you cannot deny the generality of things.  Unless the searcher specifies, RF also comes first in search results.