Once your have your external account connected, you can click on the connect account under my accounts.
From there, you'll see the following Menu (Withdraw is only available on withdrawable accounts)
Deposit options allow for you to enter the amount deposited.
Withdrawal options are ACH or Instant Bank Transfer. Processing typically take one business day, but can be as fast as 8 seconds or as delayed as 3 business days depending on your bank. The following screen shows your available amount to withdraw. For additional details on differences between balance and withdrwable amount, please refer to this article.
Most importantly, it's imperative that you have the flexibility to set account limits or snooze your account at any time. These are included to help ensure responsible gaming is met.
For additional details on understanding transaction details, check out that article here.