Unprofessional 'professional' service

I went to Lancet - Laudium branch today, and it's the most unprofessional service I received from what should be a 'professional' service.

I arrived at 12:22 and the lady was busy with two men attending to some paper work. After a while she came to the door and without greeting said "We are closed for lunch"

I asked if she could please just do my bloods it will only take a few minutes. She rudely said that she has already taken lot of her lunch minutes. I understand that there times that the depot has to close for lunch but her attitude was really dismal. No courtesy, no kindness - no offer of what time I should return, or if I should wait. Basically, just no professionalism.

I am a doctor who regularly sends patients to this depot and if this is how patients are treated then I will stop sending them to Lancet.