bho? io non ho mai avuto problemi. ho letto anche io di prelievi in pending di difficoltà nel prelevare i fondi....ma io sinceramente oggi ho prelevato 2 bitcoin senza problemi di sorta. pagamento effettuato in 30 secondi e non scherzo. sarò fortunato io.... 
My friend, believe me, you've been lucky.
It is true that Polinex has more honest withdrawal fees than other exchanges, but there are hundreds of users with coin-locked wallets for months and have virtually no support.
Also, to have Tier 2 Tier 3 changes it takes maybe a year
Binance exchange, Chinese and international, has been born just over a month and is moving fast; Low fee that can be halved, 0 fee on Neo and Gas coins, fast support, immediate approval!