I bought two mods from Codefling.
One mod is working but the other (Vehicle Fuel Manager) is not.
I submitted a support request for the mod. Several days and no response.
I tried "Live Chat" with Codefling support, it said they were not working and that they would email a response. No email yet.
I posted a negative review of the mod due it not working and not getting support. Review was not posted.

Pretty disappointing.