Extremely delayed withdrawal

Although I have asked to cancel a withdrawal due to wrong bank info, Tradesto takes an extremely long duration to process withdrawals and without our notice they reduced the withdrawal exchange rate without notifying the users at all and worst of all, it's been 4 weeks and I still have not receive the amount being bounced back to my Tradesto money account because to withdraw your money there is a "first come first serve" basis? while waiting over 4 weeks? Many of my friends that are using other brokers do not have such policy for their withdrawal. This is extremely frustrating.