I had a feeling that was done. I know I had to do that when I worked in a collection agency 12 or so years ago here in the US! lol

"Let me speak to your manager!" says the recipient. "Sure sir, hold for one second." Quickly forward the call to a co worker. 10 or so of us shared 4 names (men were Bill, Lewis and women were Samantha, Cindy) and we all played the role of the manager John or Johnathan and Diane or Diana.) Real shady place, I can tell ya that! lol