Im currently on the Orcon + 5gb plan and generally use 3 - 4GB max.  I've just realised that it would be better to be on the 1GB plan and pay for extra data per month and this would be cheaper!  or I can get 6GB for the same price!

But would Orcon allow me to change plans like this or would they push me back to the 5GB plan after a few months???