Trading hours

I was returned back by the security at 16:45 nd told that the store is closed bt the trading hours says the store closes at 17:00 when i asked why then they close before time i was told that they have to leave the store at 17:00 what time do i expect them to leave the store because they have to leave at 17:00, we started arguing and the security closed the door and leave me hanging outside without being helped