Canadian prices and discrepancies

Magic: The Gathering - Puzzle Quest MtGPQ Bugs & Technical Issues
1

Im in Ottawa, Canada on Android.

  1. Pack of 1000 crystals is $49.99
    Google Play wants to charge me $57.99

  2. Dovin costs $49.99
    Google Play wants to charge me $67.99

Explanations as to why the PW costs me $10 more?

And seriously…almost $70? That is the price of a AAA video game.