Unethical behavior from lady "robin"

I arrive for license disc renewal get a ticket number and wait in the que, after some time learning that it's cash only cause card machines are not working I told the lady at the door that also cleans the glass robin (if that is her real name ) that she should inform people on entrance that it's cash required before waiting in a 2hour que to find out . "That's tough " she says taking my ticket A0567 saying I will get it back when I come back with cash. I come back 15mins later with cash and she apparently gave my ticket away cause the number was called so I get another ticket from her which is now A0578 .I'm sitting her and it's now only A0563 being called .this has an attitude and becomes difficult with customers as though it's my way and no other way. I am the tax paying public and to be treated so unethical by a government department rendering a service is heartbreaking I'm sitting in this que saddened and disheartened . Who is she and what gives her the right to treat me like this or make me feel like this? I would really like feed back on this to know how this is delt with please