Pick n pay decides who is a essential worker

I am absolutely appalled at the service I have experienced at Pick n pay Musgrave I am considered a essential worker employed at a financial service provider (bank staff). We get lunch breaks for about 30mins to a hour depending on our branch circumstances. Due to the pandemic our country faces we are allowed to go 1 at a time on our breaks to the store, the only stores opened in our area is Woolworths and Pick n pay. The security asked a staff member to follow a queue, staff member had advise security he is a essential staff. But store management Mario and head of security Hazel had shut us down, Mario extremely rude individual has no sense of customer service, he needs to be educated on how to conduct himself in a professional manner, as all we wanted was a understanding of why he did not consider us essential. Mario also mentioned we have people at home to go to the store for us! So I want to raise this as a complaint how do bank staff stand in queue to purchase basic goods not grocery shopping on a basic day at work? If the police, government and army officials consider us essential, please explain Mr Mario and Ms Hazel how in your understanding we are not essential and we need to join a queue which takes about 3 hrs or more to get into your store? How is asking any essential worker to join the queue any logic when our country is facing a pandemic and we need to work with urgency assist customers with essential needs? Mario also advised us we need to explain to the queue out of his door why we are essential and why we should be let into his store