TRACN4 road works with full toll fee!!

I have sent them emails to no avail (with an assurance will revert in 72 hours!). There are 3 toll gates on the N4 between Johannesburg and Malelane. A large expanse of the road is (and has been for a very ,long time) under construction. In many places a single poorly surfaced road. On principle to charge toll fees when the route is in such a state of disrepair is blatantly not right.