Re: NTL charging consumer to disconnect service?????
I haven't heard of this myself - the only instance I could think of where a disconnection fee may apply is if she was still within a contract period - eg you signed up for a year but wanted out before the 12 months. This is clearly not the case here though. My parents in law disconnected from NTL to switch to Sky earlier this year and all that was needed was a letter sent asking them to disconnect the service, and to send on details of any outstanding charges (ie final bill).
I can tell you anecdotally (I live in Waterford and would have heard this from various sources who would have been in a situation to know) that until recently enough, NTL would have followed the practice of writing off bills of smaller amounts if they felt they had sent enough warning letters and still nothing was being paid, they would simply cut them off, but I don't know how they react to such a situation nowadays with the takeover.
disclaimer - I am not suggesting you ignore the bill, I am merely saying this in case your friend is worried they may chase her through the courts, to put her mind at ease.
I am sorry to hear of your acquainteance's situation, this is the last thing she needs on her plate to be worrying about.
Ask to speak to a manager/someone higher up the chain as from my own dealings with NTL (and that of friends/family) the frontline on the callcentres will only recite the speil as they don't have authority to make a situation by situation decision. If you stomp your foot loudly enough to a manager, they more often than not can sort the problem for you as they will be more amenable to keeping good customer relations/public profile.