Centurion mall parking office manager very mean and unsympathetic

Parking for 4 hours at Centurion mall is now R40. I was not aware that parking tariffs have changed and really didn't have the R40 with me. I went to the parking off, the manager just said there's nothing I can do ma'am, am I supposed to pay for all the people in this mall. She was very mean and rude and very unsympathetic.