Shop charges incorrect amounts

ive set up a high qual sale of 10 units for 100 economics. Regardless of how many stacks of the 10 i add to the basket it only charges 100. I increased the basket value to a value far greater than my balance, it still let me buy, charged 100. It is giving out the correct quantities of purchased items. The cart shows the correct amount to be billed, but when you buy it just deducts 100. 

ShopController.json

Make sure you’re using the latest version of the plugin 

Yeh i must be, first download of it was feb this year from this site.  I bought the bundle.

Ill download and reupload it again to be sure

i did the above. The issue persists. 

A side note, for sales to the shop can it be an open container form that players can put items they want to sell into. The container can show sale total and reject anything that does not make up a full stack back to player inventory on sale of the items? Be better than spam clicking the sell button on the item image.