Mica Centurion does not accept Mica cards?

I visited the Mica Centurion store today to buy some plumbing supplies totalling about R3500, however when I went to pay and wanted to swipe my Dream Card, the cashier refused and told me that they do not accept the Mica Dream cards... I asked why that was since they are a Mica store and that it was a Mica card, she told me that each Mica store is individually owned and the owner can decide whether he wants to accept these cards or not... I told her that I have bought items and swiped my Mica Card country wide and this was the first time that a store wouldn't accept my card and she just rep**** that it is not true and that this store will not accept the cards... Needless to say, I left the store without buying the stuff and went to Builders Warehouse instead...