code: function performPreorder (api, orgaId, name, planId, providerId, region) {
    const params = orgaId ? [orgaId] : [];
    return api.owner(orgaId).addons.preorders.post().withParams(params).send(JSON.stringify({
      name: name,
      plan: planId,
      providerId: providerId,
      region: region,
    }));
  }
docs: Generate a preview creation, to get access to the price that will be charged,
  as well as to verify that the payment methods are correctly configured