Bad experience

So disappointed in the Ackermans branch in Adderly street, Cape Town . As I was approaching the store yesterday I saw the roller door halfway closed already. I then ask the security what time they closing he said at 3pm. I look at the time and saw that it was only 14H45 I told him what the time was but he just kept on saying that the store is closed and its only halfway closed so that the people in side can exit still. To me that makes no sence at all. If you should be open till three do not turn away customers. I do have an account with you , but considering closing it because of the bad expirience I had. The security at the door was extremely rude and even thanked me afterwards when I told him that I will report this. I came all the way from Green Point for nothing ,time ,effort and money waisted.