Problem with promises : is it the right way ?

complex.js

var client, payment;
return clientDao.get(id)
    .then(function (foundClient) {
        client = foundClient;
        return paymentDao.get(paymentId);
    }).then(function(foundPayment) {
        client.credit(payment.amount);
        payment.cancel();
        return clientDao.save(client);
    }).then(function() {
        return paymentDao.save(payment);
    }).then(function () {
        client.flush();
        payment.flush();
    }, function (error) {
        eventBus.publish('payment_cancel_error', {
            error: error,
            client: client || {id: id},
            payment: payment || {id: paymentId}
        });
    });

simple.js

var client;
return clientDao.get(id)
    .then(function (foundClient) {
        client = foundClient;
        client.debit(amount);
        return clientDao.save(client);
    }).then(function () {
        client.flush();
    }, function (error) {
        eventBus.publish('client_debited_error', {
            error: error,
            client: client || {id: id}
        });
    });