Arbitly located at arbitly.io has suspended withdrawals but are taking deposits. My withdrawal, like many others, is now pending for more than 3 days. And, their support channel went from being very active to very silent, and a broadcast-only channel. And, I do not believe they have been hacked as a reputable company would have not suddenly gone silent.
Arbitly' Crypto Trading Platform Website

After a few days, It tried to withdraw BTC, LTC, or ETH and all of them are still disabled. On the chat, they say they are going thru some updates on the website, and withdrawal will be suspended for up to 48 hours. But, when tried 3 days later, withdrawal is disabled. And, why have they not alerted customers about this so-called "update" and that withdraws would be disabled for a certain amount of time.
A friend of mine told me that Arbitly claims they are in the media at Yahoo News, Yahoo Finance, BlockONOMI, and Business Insider, but the links to their so-called media articles do not work. And, he could not find their articles on the same media websites after searching for them.
If you have any information about Arbitly, please share your experince in a comment below.