In bittrex go to Settings and you should see what account tier you are in with your withdrawal limit.
In polo, go to My profile and you should also see the same details above.
Legacy accounts should be able to withraw although trading will be disabled unless they verify their account.
Trading and lending will be disabled;
Open orders will be closed;
Loans will have auto-renew switched off;
Margin positions will be given an 8 week wind-down period where they can only be diminished or closed. After the 8 week wind-down period, they will be closed;
Deposit addresses will be revoked. Any deposits sent to a revoked address will not be recoverable until the account is fully verified;
Withdrawals will remain enabled at the daily withdrawal limits prior to the deadline.
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