I currently have the old Canada-Wide Data Double 45 plan which includes 1GB of data. Looking at the plan details, it says additional data is $5/500MB. As I've been approaching my limit the past couple of months (THANK YOU for the text alerts, btw), I am curious how this works. I'm assuming that if I use between 1-1.5GB of data, my next bill will just be $5 higher, and then the following month it will go back to normal if use less than 1GB, but I want to be sure. Is this correct, or is there something I have to do to add additional data to my plan before I go and use it?