code: public JSONObject getRoomByOffer(String company, String offerId, HashMap<String, String> params) throws JSONException {
          return oClient.get("/messages/v3/" + company + "/rooms/offers/" + offerId, params);
      }
docs: Get a specific room by offer ID
  
  @param   company Company ID
  @param   offerId Offer ID
  @param   params Parameters
  @throws	JSONException If error occurred
  @return	{@link JSONObject}