Just rang up to cancel my subscription, went through the questions most would ask why you are leaving etc. Gave my details around 4 times because the person on the phone was so hard to understand, and then when I passed security got asked the next set of questions.
I was trying to be sold a package for £9.99 to be alerted for all sorts of things, I said no thanks and then was held for longer again going through a big script trying to sell me another package for £1.99 a month for identity theft. I also said no thanks at that and then he decides to question me and said literally, well how would you know then when someone applies for credit using your details? So I just replied and said sorry but that isn't my concern at the moment nor should it be yours.
Finally got it cancelled, but prepare for a mountain of questions when trying to cancel.