Token or account number can be passed in. In the case where token is passed, the balance of the account to which the token is related to by default, is returned.
Provision is made for four balances to be returned :

1. Total blocked amount (bal_blk_amt)
2. Total Settled amount (bal_act_amt)
3. Total pending amount (bal_pnd_amt)
4. Total Available amount (bal_avail_amt)

Note: Pending amounts are amounts that may be ‘in progress’ to the account but not cleared for use (eg a chaps transfer, or chargeback refund).