I am on safari, but just updated to ios 7.1.1 frame load interrupted. Hopeless.
oh!. I'm on 7.0.6 (jailbroken so don't update yet) did you try pasting the link into safari? not that its a great solution, imagine us trying to talk people through this, nightmare!!
Cool, can you make sure the KB for iOS is updated to show the new settigs (I think you need instructions for both iOS 6 and 7 on how to get to the APN settings page) and also include the link that one should click on, from their device?
Incidentally, I had hoped it the link could be made into a web app, for later retreival (like when you come back from using a foreign SIM on holiday), have you considered that as a possibility?
If the Company who made my phone made life so hard for me then i would get rid and get a different phone.
Apple are just ,well no point in posting that as its just going to be bleeped out.
But given the OP info and whats been said,then what is the best way to do it.?