OR Tambo parking

Security shows me where to park to drop my daughter, inside for 1 hour then get told its R510 because its long term parking. Go to office, lady screams at me very rudely "you should read for yourself and I don't need to help you" . I tell her there's no visible boards at entrance, she said t "Thats your problem". This is how they treat people just to ***** your money.. only on exit at boom is there a board with parking tariff, drive around again, absolutely no signs to show long term? Useless, even security told us they sit and laugh at people in the office as they take their money? Happens everyday, no one interested in helping or at least putting up descent visible signs. Definitely a **** to take as much as possible from clients visiting airport..