seantomlins:
The DSL connection has changed rate from 8Mbps to 14Mbps so I'd say they have changed it.
8Mbps would be the lower end of ADSL2+, so maybe you were being served from Orcon's ULL gear prior and now are being served a wholesale service off a cabinet?
That sucks for you, it can be tough enough getting problems fixed when you know exactly who to call and what the problem is, must be even worse when you dont know who to call!