I have a question for everyone who has had their deposit disappear like this. Did you all have it under pending for exactly 3 days before it got moved over to the completed deposits? The reason I ask this is because the same thing happened to me and it was on pending for 3 days but didn't get confirmed in that time. Then, it moved over to the completed and got confirmed the next day but the coins never showed up. I think what's happening is the transactions used to fail and get sent back to your wallet after 3 days. However, it now takes 2 weeks for the transaction to fail and to get your coins back. Seems like they still have it coded into their site that the transaction should fail after 3 days. I think if they just went in and changed that 14 days, this problem would disappear. However, i'm not sure of an easy way to get all users their funds back. This is probably something that's going to need to be done manually. Knowing Bittrex, this probably won't get done either. Unless they decide to hire a whole team of people to help with it.