The top 50 call centres - Arghgghg

Just unsubscribed from an online retailer that was becoming a pest - emails daily offering unbelievable, and unnecessary, goods. Scrolling down to the unsubscribe 'button', I noticed the business prides itself on running on of the 'Top 50 UK Call Centres'. Really? How are such things graded: does Lucifer and his demons check the chains keeping 'operatives' at their desks? Does Azkhaban send dementors to check on the levels of misery stalking the corridors and toilets? I'm free of their pestering emails, but my undoubted sense of freedom is somehow tainted by the knowledge that there is a league table of call centres. Tear down the facile marketing slogans, rip up the sales scripts- you have nothing to lose but your chains!