Unsafe on the freeway

On the 25th of October, after 7pm,I was driving on the R300 towards mitchells plain and I got stuck just before the stellenbosch arterial. We were just before the bridge and there were 2 security guards sitting there. It was me, my 12 year old son and my 10 year old son. I asked my 12 year old son to go ask the security guards for help as we saw 2 suspicious men approaching our car. The guards told my son we needed to push the car to them. The 2 men went and sat with the security guards. After a while one of the men came and surrounded our car and looked through the windows and I told him my husband was coming. He then wet back to his friend and made a call and they left. At this point I had phoned the emergency line 112 twice to send police. I had also called my neighbour to come tow me. The 2 men then reappeared coming with a third person and as they were approaching my car,luckily my neighbour got to us on time and towed us away. The 3 men stood afar and watched. As we were driving away one of the security guards waved at us. Through this ordeal those security guards never attempted to help us and we were in real danger.