There are no precedent cases as none of the convictions were ever challenged in terms of 86(1). So, if your attorney has done some home work, as suggested before, they would already have gotten the lower court judgments from the various commercial crimes courts, as these courts (due to the fact that there are no precedent cases) use each others decisions at this point in time. You will not find these judgments unless you find the specific cases and getting hold of the charge sheets.
In fact, I pointed you, in the other thread, to one of my old, old section 86(1) cases where the court clearly defined authorization based on a precedent case from the supreme court. In fact, here is one they really need to look at closely - R v Douvenga (District Court of the Northern Transvaal, Pretoria, case no 111/150/2003, 19 August 2003, unreported) and they will find at least 50+ other convictions after 2003 in terms of this section at the JHB commercial crimes court as well.
The most important thing about all these cases is that the authorization or permission aspect has been dealt with. Your argument of the 'server' giving authorization will be something that only a high court can deal with after the criminal trial. It is unlikely that the lower courts will go against the definition of authorization / permission already determined by higher courts.
I am not your attorney, nor have I been appointed at any time to assist, but for them going the extra mile and preparing properly may just show these small things they are obviously not aware of right now.