There are a few bugs and I would send in a support ticket immediately so they can log your problem. I am sure they will fix it soon so don't worry, your money is safe, but just send in a ticket regardless, especially if it's a deposit or withdraw issue which is of paramount importance where any exchange is concerned. I have full confidence that everything will work fine on COSS. I think this project, once bugs and new stuff are ironed out, will work wonders for the COSS token holders.