Bittrex customers are unable to withdraw money from the cryptocurrency exchange and they have not heard from the company as to why this is occurring; the main issues appear to be involving verification of identities when they try to withdraw the money; the issues have been going on for close to 30 days for some customers and the company said the issue has only affected a small number of accounts. Source.
As the crypto industry waits for regulation in the U.S., CeFi has a trust dilemma. Increased transparency might be the way forward.