There are several ways to get information about your account balance.

Web:  Your balance is displayed when you sign in to your account.

Email:  Each time you have a card transaction, a notification is sent to the email address on your account, and the message includes the amount of the transaction as well as your available balance.

Your Available Balance is the amount of money to which you have access via your account/card.  It's determined by taking the Actual Balance and subtracting the Amount on Hold.