Are we getting all our sells?

Card additions means only that custumer has put item into cart - not actually bought it.
Maybe he is doing so to pick the best item later - never know.
I think P5 is doing great job for us, contributors (providing solid customer base and not screwing contributor's share), so, if they want this little delay, which is here for a appropriate reason, I believe, I am totally ok with it.

Where do you see if someone added your items to their cart?

Go to your uploads, make sure the Status - Online is selected, and click on the sales data tab below.You can arrange them by cart adds or sales.