code: public JSONObject getByFreelancersCompany(String freelancerCompanyReference, HashMap<String, String> params) throws JSONException {
          return oClient.get("/finreports/v2/provider_companies/" + freelancerCompanyReference + "/billings", params);
      }
docs: Generate Billing Reports for a Specific Freelancer's Company
  
  @param   freelancerCompanyReference Freelancer's company reference
  @param   params Parameters
  @throws	JSONException If error occurred
  @return	{@link JSONObject}