PICK N PAY TRADE ROUTE MALL LENASIA

So I understand the whole queuing story and please don't get me wrong that is not the issue . My issue is that firstly I am a registered essential worker and work 6 days a week , when producing my letter the security did not accept it then I stood for 30 minutes at the till and when I got to the front of the queue me and quite a few other people were told to move to another queue because we were paying cash . The other queue was longer than the first queue i initially joined and was told by the manager who does not know anything about customer service to join another long queue . Why was a sign not put up stating that this till is for cards only . I will not be going to shop there as the people working there feel they are doing me a favor by working , they forget that it's thanks to people like me that actually ensures that they have a job . The way I was treated I doubt that they would care that they are losing a customer however I know that there is a number of people from Lenasia that will no longer be shopping at Pick N Pay trade route mall .