Unfortunate situation bud...in my opinion, your best course of action would be to communicate with the CPT dealer, and get them to agree to have one of the KZN branches to diagnose the car.
Alternatively, return the car

.
You spent your hard earned monies to get your Dream car, these kind of gremlins is only going to leave a sour taste...and given recent comments...dealers dont like to help out in a hurry. Customer service has taken a major dip...especially in KZN.
In general, most guys trade-in tuned cars when there is an issue...not saying that this is 100% the case here.