No security in parking

I travelled to Durban on the 14/10/2015, parked at level 3 (domestic), I was supposed to land at O R Tambo at 5pm on 15/10/2015. My fight was delayed in Durban for 5 hours. Landed at O R Tambo at 20:55pm. As I got out of the lift at 21.30pm to pay for my parking a man approached to loan R9. I said that I do not have cash. After paying with my card as I walked towards my car, another man approached me also wanting money. There was no ACSA security/personnel around. If I am paying so much for parking R232 (overnight), I expect to have some sort of security, especially being a woman travelling on her own. Security needs to be improved, as I see that there were previous complaints and if I experienced the same, nothing was done about it.