Watch out for Insurance Supermarkets broker fees!!!

When purchasing my vehicle, I accepted the dealers offer to assist me with insurance on the vehicle. They had directed me to Insurance Supermarket whom I had later found out is a broker, nevertheless they assisted and got me insured with King Price and I was more than satisfied with how efficiently everything was done until things would later take a turn for the worst. In December 2018 my account had an additional debit of R250 for broker fees. At the time I requested King Price to contact me for another insurance quote and when I queried if the broker fee on my current Kp policy is going to be a standard fee of R250, he advised the R250 was a once off payment as I have a broker appointed on my policy and in future the broker fee is only about R80 or something which is inclusive in my monthly insurance premium. I was fine with that. However January 31 2019, my account debited for a further R250!!! This time I called Insurance Supermarket directly and to my surprise the guy who I spoke to explained that it is a once of fee, and broker fee is 80 something in my premium, and when I informed him that my account was already debited in December for the once off fee, why was it debited again? I do not think Insurance Supermarket understands what "Once off" means because surely this has become a twice off payment, a warning to anyone who wishes to engage the services of Insurance Supermarket need to be careful and watch the broker fees