Rude, ill-mannered and customer-threatening staff member

This rude, ill-mannered and disrespectful, no-name tag staff member who was stationed at PnP Money Counter at 9:20, left queue of about 10 people or more without saying anything. Upon asking hercolleagues where she went, we were told that she went to fetch the key for the cellphone cabinet at the back.

When she came back 5 minutes later she called upon a guy that needed to do a sim-swap, when I asked her what her name was and what her name was and why does she not have a name-tag, I told her that I want to report her.

She was still busy helping the guy of the sim-swap and still refused to tell me her name, I then took out my cellphone and took a picture of her and that is when she threatened me saying that she will show me who she is.

After she finished helping the sim-swap guy, she nicely switched off the machine and told her she is offline. and the gentleman in front of me actually predicted the stunt.

she is rude and she is an embarrassment to the staff. even the sim-swap guy as a customer saw the disrespectful behavior and actually apologized on her behalf.