I tried mining with 4xRX480 8gb cards at arcpool.com - now they have maintenance. A small amount i mined. So i sent a small sum of 0.01 tune for coinexchange, stocks.exchange and crypto-bridge.org.
No sum was received in the account. Dev, I believe it will be soon functional currency exchange. Good luck with your project.
Everyone who has issues with TUN deposits or withdrawals should open a new support ticket at the exchange that has not updated its TUN wallet yet.