One day a CGD employee called me to say that I had...

One day a CGD employee called me to say that I had no balance in my account to pay a check and I said then do not pay the check.
I went to CGD in Cascais and as I had previously been abused by her, I decided to make a complaint.
But to my amazement I had to make the complaint in front of her which was already annoying me and so I got up and said I will make the complaint there to the counter because I don't like being here.
I spoke a little loudly because that CGD is a drought.
So, it's not that 2 employees showed up and made me complain right there, they even hurt me and everything.
They called the police what I thought was amazing and I left and the police wanted my identification.
THINK THIS NORMAL?