Totally disgusted!!

I'm completely disgusted by Makro! I've app**** for their store card and was approved for R7000 of which I've used about R2400. On Saturday 14/03/2020 I was at Makro Centurion and spend more than a hour there, stood in the queue, rang up everything only to be told I only have about R350 available. I don't know of an institution that decrease your limit (for which you were approved) without even notifying you