halper86: Glad I could help, but I must mention that VF can withdraw their internet service (not actually VDSL itself, as this is the copper access service provided by Chorus) at anytime however I am unsure of the regulations around this.
https://comcom.govt.nz/regulated-industries/telecommunications/regulated-services/consumer-protections-for-copper-withdrawal/copper-withdrawal-code-faqs
This might answer a few more questions for you regarding the withdrawal of copper itself :)
Excellent resource. I have learnt a lot since yesterday, and now I feel better prepared to "take them on" over the phone to find out what they are planning. Many thanks!