Those settings worked for me but only after i installed a custom profile and editing the settings manually. (only after this profile installation was i able to make it work)
1) go to http://www.unlockit.co.nz
and create and install a custom profile (from your phone through wifi)
you will be able to manually edit the settings on the page. (only the Apn, you can add the rest later)
2) go back to your phone settings/general/network/cellular data network and make sure you have the settings listed above.
you will notice the apn settings are not exactly they way you typed it in the website. (that's why you need to change them and also the rest of the settings need to be manually added which were not available on the site)