Images removed from contrbutors account.

When Adobe takes down images, they notify you by mail prior to this action. In addition they will enter the "not accepted" tab: https://contributor.stock.adobe.com/uploads/rejected. Their position will be, however, as if they would be, if refused right away. 

It happens.  Adobe doesn't keep ALL assets in inventory forever. 

The ones that no longer meet current standards get removed to make room for new ones. 

Don't take it personally. 

The assets removed may have been duplicates, or they do not comply with Adobe's updated requirements for submission. You should be able to find the deleted assets under the "Not Accepted" tab. Not sure about the incorrect tally..