BillForward.Account.getByID('ACC-81674A80-3B2D-4327-8C24-994720BA')
.then(function(account) {
	// you might want to take a peek at the account
	// console.log(account.toString());
	
	// get relevant payment method:
	var paymentMethod =_.findWhere(account.paymentMethods, {'defaultPaymentMethod': true});
	
	if (paymentMethod === undefined) throw new Error("No default payment method found for this account. Of course it is still possible that this account can pay via credit or 'offline payments'.");
	
	// the SDK seems to have an unserialization problem; we need to manually tell JavaScript that this JSON is a BillForward.PaymentMethod:
	var _paymentMethod = new BillForward.PaymentMethod(paymentMethod);
})
.done();