Inefficient, unhelpful and rude service at Woodford Car Hire

When I arrived at Woodford (OR Tambo) to collect my car, I learnt that my online booking had been made through a third party, Car Trawlers. I tried to amend my booking at OR Tambo to obtain comprehensive car insurance through Car Trawler, but was unable to do so. It is not disclosed on the website that one cannot amend one's booking with Woodford even though that is the company that I hired the car from. The sales assistant, Strini Moodley tried to contact Car Trawlers but none of their contact numbers were available. The other sales assistant, Colin Govender was rude and unhelpful. He informed me that if I was not happy with the service at Woodford then I could go someplace else.