14 In order to understand the significance of those prayers it is necessary to say a little of the second further amended statement of claim. It makes a number of allegations against Optus of misleading and deceptive conduct. Putting the matter at its most simplistic, it is alleged that Optus sent SMS messages to some of its customers and posted on its website statements which had the effect of suggesting to those customers that telephone calls that rerouted or diverted to international numbers would be charged at a rate of 29 cents per minute plus a 27 cents flagfall. The service provided by the applicants is a service whereby a call is made by a customer to what appears to be a local number and then using various arrangements that call is then rerouted to a desired international number. The apparent intent of that arrangement is to allow persons to make what appear to their respective mobile phone carriers to be a local call and to thereafter be charged somewhat lower international rates by the applicants.
15 The effect of Optus' statements is to impose its full international call charge on customers calling the applicants' numbers. The applicants contend that the making of those statements was misleading and deceptive because the terms of Optus' contractual arrangements with its customers did not permit such a charge to be levied on a local call. That statement of the nature of the allegations is incomplete and imperfect but it captures, in part, the case.
16 The pleading also contains at paragraph 23A an allegation that other conduct of Optus was unconscionable. I have previously dealt with, in another judgment, the nature of those allegations. It suffices to say for present purposes that they are related in part to the differential treatment which Optus may have taken with respect to its customers.
17 I have spent some time identifying the nature of the pleading because the issues which the applicants now seek to have determined separately do not include the unconscionability case. The applicants, therefore, submit that it would be appropriate to decide separately the question of whether the SMS messages and the internet postings are misleading and deceptive. This is appropriate, so they submit, because the question which arises on the hearing of such a separate trial would be the simple one of whether the representations contained in the SMS messages, and on the internet postings, were correct. That analysis would require only a consideration of the terms and conditions of the relevant contracts between Optus and its customers. This, so Mr Kunç submitted, would be an inquiry of relatively narrow compass.
18 That would, of course, leave the unconscionability claim which is contained in paragraph 23A of the second further amended statement of claim to be determined at a later time, presumably, at the same time as the hearing of the case on quantum. That would obviously be an undesirable state of affairs. To assuage concerns in that regard the applicants proffered an undertaking that should they fail on their s 52 case then they would abandon the unconscionability claim. The perceived benefit of that was that it could provide certainty of outcome, at least in the case where the applicants were held to fail. Of course, it provides no certainty of outcome in the case where the applicants succeed and it will leave, if that occurs, the possibility that the unconscionability case will need to be decided at the same time as, or possibly even separately from, the case on quantum. The applicants sought to circumvent that outcome by suggesting that if the Court were otherwise minded to pose the separate questions then it might be appropriate to take that course but require, as a condition of it, that the applicants give a further undertaking to abandon their unconscionability case. It is for the applicants to decide how they run their case. I do not propose to fashion relief on the possibility that undertakings might be given.
19 For that reason it seems to me that it would be inappropriate to pose the separate questions which are sought. The same conclusion can be reached another way. This case has already proceeded through a far greater number of interlocutory disputes than is ordinarily seen for reasons which presently elude me. However, if the matter were to be determined on a separate basis there would be, it seems to me, the possibility that there would be witnesses who would be heard in the liability phase who might be recalled in the quantum phase. I accept that this may not necessarily be so for Optus may call no witnesses. But I cannot say at this present state of the proceeding that that will be so. Nor can I be satisfied necessarily that the same may not happen on the applicants' side.
20 This is not to suggest that it is probable that these problems will arise, only that I am unable to exclude them as being rationally possible. In the area of the determination of separate questions, experience teaches that they are affairs which have a tendency to turn out badly for all concerned. They are generally inspired by perceived gains in efficiency but usually those efficiencies turn out to be illusive. That statement of sentiment is not an isolated expression of a personal view. It is one which finds a manifestation in a number of decisions of a number of courts. The High Court's decision in Tepko Pty Ltd v Water Board (2001) 206 CLR 1 at 55 [168] per Kirby and Callinan JJ is one example of that concern and other examples can likewise be garnered. I accept that the relevant test under O 29 r 2 is one which turns upon the Court being satisfied that it is just and convenient to make the orders. See the authorities which are usefully collected in Reading Australia Pty Ltd v Australian Mutual Provident Society (1999) 217 ALR 495 at 497-499 [6]-[9] per Branson J. Taking into account the various matters to which I have referred I think, however, that it would be dangerous to separate the questions in this matter and I decline to do so.