https://secure.dodo.com.au/wizard/servicecheck.aspx
With Homeline AUS$49.99(NZ$62) | ADSL2+ | 20GB On Peak | 100GB Off Peak |
so i don't think nz isp's can argue that bandwidth costs too much coz they're far away from the usa.
telecom should at least have 50gb offpeak data for their $49.95 plans and above. if aussie can do 100gb offpeak then telecom should be able to do half of that and dodo is a very small isp so if their network can handle this offpeak traffic then telecom which is the largest isp in nz should be able to.