@Alex Atkin UK:
What exactly is the point of Plusnet existing if it merged into BT?
Agreed, probably none, perhaps their customer base will eventually be completely absorbed by BT, who knows ?
@rongtw:
Yes, as someone who has had an issue with PN over a similar time scale it's really frustrating I know, however, provided your system remains fully operational and PN are still supplying technical support should that be required you are receiving free service through no fault of your own and PN can only ever charge you for 3 months arrears when your billing issue is eventually, if ever resolved, their loss, your gain !
I was in the "stuck billing" situation last year for 4 months which was triggered by an unsuccessful attempt by PN staff to correct my contract dates, billing was restored and I was billed for 3 months arrears only, contract dates unfortunately remain incorrect to present.
It is really inconceivable how a major ISP the size of PN with their BT parentage have permitted this situation to go on for so long without resolution, must surely have resulted in significant loss of revenue, many existing customers and potential new customers.