WC Paysafe: Add account number based on order currency

wc-paysafe-add-account-based-on-order-currency

// Normal order
add_filter( 'wc_paysafe_request_params', 'prefix_add_account_number', 10, 2 );
// Subscriptions/Pre-Orders order
add_filter( 'wc_paysafe_addons_request_params', 'prefix_add_account_number', 10, 2 );
/**
 * @param          $params
 * @param WC_Order $order
 *
 * @return mixed
 */
function prefix_add_account_number( $params, $order ) {
	
	// Check the order currency and add the appropriate account number
	if ( 'USD' == $order->get_currency() ) {
		$account_number = '[USD_account_number_value]';
	} elseif ( 'CAD' == $order->get_currency() ) {
		$account_number = '[CAD_account_number_value]';
	} else {
		$account_number = '[GBP_account_number_value]';
	}
	
	$params['extendedOptions'][] = array(
		'key'   => 'merchantAccount',
		'value' => $account_number,
	);
	
	return $params;
}

This example appears to be assigning the return value to $request_params but then returns $params

Yes it was, good catch