Hi and many thanks to all for their solid advice.
Letter to the Chief Exec. got the result I wanted. Head office got involved within a week and Bob's your Auntie Mary...
Issue is now resolved (within 3 weeks)

and even better cos NTL got Cobra to wire up the
whole building internally therfore easier for all the other flat owners in my block to get all NTL services.
Nextdoor got reconnected on same day.
Electronic feedback form did not get any response!
The moral of this story is ....Ntl should not outsource. And NTL should not charge for contacting customer services via phone
I know many on this forum have all had their gripes and moans but the difference/reduction in the quality of customer services at the coal face is unforgivable.
Over the 6 years as a NTL customer I have had sterling service, from the bloke who installed my services/upgrades to the chaps and chapesses in tech support. Issues sorted out often within minutes.
I work in an area where customer care is paramount, If you get it wrong your customers not only get a lower quality of service but they also loose confidence in all individuals within the organisation to deliver.
This is my main gripe with outsourcing to non-UK areas, my experiece is that of speaking to people who do not appear to have any knowledge about their services other than the written script in front of their face.
I just hope that someone from head office reads and takes heed of many of our comments on this forum...are we not the experts...the customer is always right.
Cheers
Jock