Pams

It seems there has been an outbreak of Pams.
Pams are power hungry individuals, unfortunately usually women, in customer service roles.
Customer service seems to suggest that Pam is there to help you, but if you have just encountered a Pam, it quickly  becomes clear that Pam doesn't want to help you, she wants to wreck your day.
Pam will say things like, "you should have telephoned first..."
She says this as if wielding the great axe of power which she is going to smash down on your day because you didn't phone, or you forgot the email, or the receipt, or the order number, or the curtsy.
Pam is out of control.
You think when you ask for the manager, and the manager agrees with you and says, "Pam, now sell this lady the Television, replace this lady's hoover, or exchange these rotten apples, or give this lady a refund...." you think Ah ha! Pam! Victory is mine!
But Pam will argue even with what the manager says, she will say things like "well, I'm not giving you a receipt. He must be having an off day, there is nothing wrong with this, next time don't forget...."
And she will give you a look to demonstrate to you that she, Pam, knows exactly what you are...and it's a not very nice thing that Pam herself despises above all else; you, are Pam's customer...