(Updated on 2016 April 16: We received the $10 promotional code today ! Please read the updated details at the bottom of this post) Amazon Canada is providing a Gift Card promo deal: Buy a $50 Amazon Gift Card before April 30, 2016, you will get extra $10 as credit so that you can use it in your next purchasing.
We did not realized the promo deal until we got message from friends. Then we tried it at once.
The following is our purchase process: