There are a few Carriers who need a Proxy set up for them in the APN Settings. As of yet I don’t set any/give the option, but I will try and get the option added in this weekend as well for people to use (if they need it).
Update: APN Settings for Koodo Mobile have been added in which sets the Proxy as well
This is a step by step howto on how to use unlockit.co.nz (Pictures Coming soon). Until it gets written here are some videos which some people have made about my website. Note: the way the website looks has changed a few times since some of these videos where made so may not be 100% correct but it will show you the idea.