Hello!
If you have a province wide plan you have 2 options:
25 + 10$ for 500 MB or 25 + 15$ for 1 GB
or
a national wide plan you have 3 options:
35 + 10$ for 500 MB or 35 + 15$ for 1 GB or 35 + 25$ for 2 GB
the same thing for the 45 plan + unlimited call to CANADA/US