No reponse from Santam

I was involved in an accident with a Santam client on the 2 December 2017. The Santam client reversed into my car. I received a call two weeks ago informing me that my claim no is . ********** 60 and the person dealing with my claim is Morris Pule. I have tried to contact him for the last 2 weeks to no avail. I was also given his manager Julia's contact details but also never answers the phone. What do I need to do to get any response from Santam. This is unacceptable.