i have the same problem going on.

I made three gbyte withdrawals Friday, however they didn't go through, and they are NOT on the GBTYE blockchain. Please help, and i'm hoping you can credit them back almost 7 GBYTE on my account as nothing is send out. thank you! here they are :
# Currency Amount Fee Status TransactionId Address Timestamp
1337547 GBYTE 6.9 0.00002 Complete Derb7P5mICdiu6sfR3OaGL8XoX1vlx1w+Lyv+L8BOS4= 6A3RMI63WAYANNSTJ3E5677ZV2OFHHY3 6/12/2017 21:08
1335372 GBYTE 0.033 0.00002 Complete MgxC3pKXbYV6FDAUG7vOZyzSd3YmrhcVlw1b6Q+mxwc= 6A3RMI63WAYANNSTJ3E5677ZV2OFHHY3 6/12/2017 16:29
1330114 GBYTE 0.03 0.00002 Complete XDzO/7Jh8hjfwphVMOk+joAJxeDxq3qbOjOhlmbWIDU= B5TW2W3DKKUEAE35RRX5B4GDZQFWT74Y 6/12/2017 6:16
I am in a similar boat with a GBYTE withdrawal.
It seems Cryptopia is running version 1.7 of the Byteball wallet.

That version is from April 2017:

The latest version 2.0 just came out a few days ago:

Perhaps this broke compatibility of the GByte wallet of Cryptopia?
Should be an easy fix I would say.
Can someone please forward this to the Cryptopia team? People have been waiting literally weeks for withdrawals to wallets. And they are fearing an exit scam.