Ha, today I got a few bucks without seeing any downloads and I thought of your post!
I really CAN get downloads from images I don't have there...

Then after some research I realized that this is actually from partner programs. When I click on partner programs on my uploads page, I see all the downloads from those website, which perfectly explains the additional bucks.

However, these are EXTREMELY cheap! Much cheaper than the already very low royalties that I got from iS.

Is this what iS and other sites do? They set up iS and you spent lots of time uploading, and if sold, you get a few cents. But they then put all your images automatically on a sister site that they set up, where they sell things cheap and pay you even cheaper.

Buyers, of course, if they know those sites have exactly the same images at lower price, will simply sign up at those sites and buy things cheaper. And eventually your downloads are all from these sites...

In Feb, my dls from partner programs are about 4 times of what I had from iS! This does not sound right to me...

nee..
On IS you can get downloads from images you dont even have there...