This may well be off-topic but nevertheless an interesting subject as all Vodafone companies belong to the same holding and what is decided in one territory may result in changes elsewhere.
Vodafone Netherlands have decided that all of their DSL subscribers must have a minimum download speed of 12mbit at their home address.
If their line distance is too long and they are unable to reach 12mbit Vodafone will disconnect their services on the 30th of March.
Vodafone claims they are a "provider of quality services" and speeds below 12mbit are "insufficient to provide the quality they strive for"
Disconnected customers are instructed to seek an alternative ISP (in NL this could be KPN, the equivalent of Spark/Telecom)
Here is the original article in Dutch for those who are able to read it or wish to Google Translate it:
http://tweakers.net/nieuws/100790/vodafone-gaat-thuis-klanten-met-trage-verbinding-afsluiten.html
https://translate.google.com/translate?hl=nl&sl=nl&tl=en&u=http%3A%2F%2Ftweakers.net%2Fnieuws%2F100790%2Fvodafone-gaat-thuis-klanten-met-trage-verbinding-afsluiten.html
and a copy of the letter subscribers receive
http://ic.tweakimg.net/ext/i/2000573926.jpeg
I reckon more than half of rural NZ would lose connectivity if ISP's adopted this? lol.