I have installed the mod, everything looks to be installed correctly I think my levels are set correctly but I see nothing about discounts at the order confirmation page just seems to not be there. I did accidentally install the version for ocs 3.0 and even though I made a backup it didn't restore correctly. so I installed the one for ocs 2.2 deleted the extra files and directories from the 3.0 install, installed the correct ones. It shows up installed on my mod list, allows me to edit the levels, but doesn't show up at check out.