very poor service

I went to Capitec bank today to increase my daily withdrawal limit, I was given the number B169 for enquiry, I'm suffering from lubango so while waiting for my enquiry I sat down, The number for my enquiry was called out once just once, once when I stood. Up the teller told me my enquiry has expired since I was sitting down, people must stand on que so i must go back to the end of the que and start over, I never chose to suffer from lubango, I was humiliated as that teller was rudely telling me I should have qued, is this how people with disabilities must be treated? And why is the enquiry number called once and expire within 2minutes? It was so unprofessional and undermining, I am still shocked and furious about this people so if you have a disability don't bank with Capitec because you are obliged to stand on que despite being on excruciating pain.