Closing Early and chasing away customers

Lotto machines at the Mdantsane City (mall) close before time. This evening at (12 March )19:26 I was there to play my Powerball ticket as I normally do. When I came in there was no teller on that counter but when I asked the security they said she's coming back its still open. When she came in I went towards the counter and she said she was closed ready to do cash up. I normally go play my lotto tickets there at around 19:40 & I never had a problem before. The pick n pay closing time is 20:00 . I don't know why someone will be cashing up at 19:25. I'm sure the manager or the cashier's supervisor pulled out the end of day report. Why????