If the adapters are both responding and unlocked, withdrawals should at least be attempted.
Could it be that your cron job is not running? Did you try to trigger it manually? If withdrawals are attempted after triggering the cron url a few times, then it means that your WordPress internal cron trigger is not running. You can remedy this by setting up a unix system cron. But first test to make sure that this is the problem.
Let me know please.