Hey there! We are currently in the process of investigating the cause of lost credits and renown. For in-game issues such as this, you would make a bug report, which you can find here: https://synergyroleplay.com/forums/forum/36-cw-bug-reports/
I'll be moving this over to that section, so there is no need to make another report, but if you could provide your Steam ID as well as any additional details about what lead to you losing your credits, that would be greatly appreciated.