Checkout Supporting Operations

$checkout initialization here.

Query Organization Balance

$checkout->support()->queryOrganizationBalance();

or 

$checkout->queryOrganizationBalance();

Intra-Account Transfer

$checkout->support()->intraAccountTransfer( $amount, $transferType, $currency );

or 

$checkout->intraAccountTransfer( $amount, $transferType, $currency);

$currency is optional. $currency default value BDT.

Search Transaction Details

$checkout->support()->searchTransaction( $trxId );

or 

$checkout->searchTransaction( $trxId );

you can get $trxId after checkout execute payment api call.