yesterday and two days ago BTC deposits was instant, but now, I've added 2 btc and it's still pending.
Account ID: 1997
It wasn't pending for too long, I see you already purchased NXT with it shortly after your message

I've sent some BTC and its not even showing as pending. almost 100 confirmations on the blockchain.
added new deposit for same amount on dgex and STILL shows no pending deposits and no balance!
Account ID: 2285
Fixed your balance. It should have shown as pending though on your account.
the coin has already been moved out of the original deposit address by you or whoever controls this address with DGEX
This has no significance, we have thousands of accounts on our bitcoin server and coins are mixed automatically.