PERCEIVED UN-COMPETETIVE BEHAVIOUR

I do have short term insurance facilitated by a major broker with SANTAM as underwriter. In December 2020 I approached a different broker and to my surprise the premium came down by R1700 that also use SANTAM as underwriter. In January 2021 I asked new broker to update quote so that I can proceed. Guess what the new price is almost to cent the same as existing broker. Very strange that existing broker confirmed in writing that SANTAM is not allowed to undercut their prices and next moment the SANTAM quote to new broker change significantly. Is this price fixing and/or un-competetive behaviour to protect major companies to milk clients at the cost of upcoming companies ? The irony is, I do have another acceptable quote from another broker not using SANTAM as underwriter so bottom line is that SANTAM will lose me as a client in any event whilst with the lower quote I would have stick with them. I will gladly provide more detail should it be required.