So he make talk talk profitable... was this by charging people for phone calls and services they never used or asked for ...!
http://scirocco2morocco.blogspot.co.uk/2010/12/talktalk-charge-customers-for-mobile.html
I know many people who were effected by this.. but cant find anything to say they had to pay people back who had been charged for take services/calls or were find for their actions.
Or maybe it was the cold calling everyone they could find to get them to swich: http://www.telegraph.co.uk/finance/newsbysector/mediatechnologyandtelecoms/telecoms/10004316/TalkTalk-will-not-compensate-customers-for-nuisance-calls.html