This is a good offer if you want to buy anything on Amazon.ca for Black Friday (between Nov 29, 2019 to Dec 2, 2019). You can earn 4 bonus points for every $1 in purchases on Amazon.ca with your registered AmEx card during th promotion period. If you have a AmEx Platinum Card, the bonus point limit is up to 4000 MR points (up to $1000). For other AmEx MR cards, the bonus point limit is up to 2000 MR points (up to $500). This is >6% cash back (actually, I would say ~8% for non-MR-Select card).
