Rude aggressive staff

While I was making a purchase the guy "behind" me was butting in and talking with the cashier.

I asked can I get some space because the guy was right against me and next to me while I was still purchasing and putting in my pin.

The cashier then attacked me saying: you want space!

I thought that was rude, she should know customer service and that she shouldn't be helping people who are butting in. Instead she should have apologised.

But when I explain to her look I'm putting in my pin and there is no privacy he is in my space. She just say : I know! Don't worry!

***?!

Is this how you treat your customer?

Your goods are overpriced already.

Please train the staff to treat customers with respect and to allow one customer to finish before helping others.

Very bad experience. I came to Monte to just relax a bit.