Ugh this sucks....I put in a withdrawal request on 4/18/14.  After a couple of days of not hearing anything I put in a support ticket. One day later my transaction history shows "22/04/2014 17:46   Bitcoin withdrawal for 1.8011 bitcoins cancelled by admin".

I have since put in another ticket explaining that their website states "within 36 hours" and that is has been 7 days as of today.  Still no response.

I hope we get our funds back, cause one thing is for sure.....I will never use BTC-Arbs again.