What should we as employers do when we see a garnishee order against an employee that we can see is legally flawed?

I've been pondering the question ever since receiving a garnishee order against one of my employees a couple of months ago. Even if I ignore the question of jurisdiction (the matter was heard in Nelspruit despite the fact that the contract arose in Johannesburg and the employee is now resident in Durban), and the issue of notices, how on earth can a judge justify granting a court order that patently contravenes the in duplum rule? Interest and legal costs make up over 70% of the order!

I see I am not the only person that has noticed:

The University of Pretoria was sufficiently concerned five years ago to carry out a study into what it called the "undesirable practices relating to garnishee orders". Sadly, its *recommendations regarding changes to the Magistrate's Act and increased training for court clerks have not been heeded, and flawed orders are still being rubber-stamped.
Full story from M&G here