Pep store randburg square

I went to Pep store in Randburg square on Thursday the 10th of October I got there 5mins before the closing time, the door was looked and the security at the door refused to open the door, he called the manager as the stafff was busy cleaning. The manager confirmed that they where closed and I asked why are they closed before the time that they should, she rolled her eyes slammed the door in my face walked away as the security locked the door behind her. I am completely Appalled by this behavior.