It was a programme about salesmen talking about others alleged tactics. It wasn't a consumer prog so I doubt if there was ever any complaint. Just a confused little old lad
Was it on the BBC or anything that might have an online repeat? Having met and worked with those kind of people I'd be interested in seeing it.
The worst I worked with was a guy called Anup (if you ever get a Glasgow accent on the phone matching that name, ALWAYS say no

) who was really sneaky and pushy.
He got caught processing sales multiple times, which I think was what got him fired. They kept him on for his dodgy tactics though... that was the last call centre I worked . Morals went out the window there.