Faulty parking ticket

My parking ticket reported to be faulty when I tried to pay. Pressed help button and initially no answer. Was asked to go to parking management office, but they could not explain where it is relative to where I was. Went back to airport building and an ACSA official took me to the office. I paid amount of R30 and was given a new ticket At the exit boom, ticket did not was not accepted There were no button marked for help. I pressed a button, but no response Had to go back to payment office (quite a distance) An ACSA office accompanied me; very bad attitude. In the end one of the security officers assisted me.