Ok, I was short 300 snowflakes away from 28k and decided to do some challenges.
After completing all of the 10 new Frozen Festivity "Snow Day Snehanigans" challenges (50 stars in total) I saw that I got a 500 snowflake reward, great! However, after backing out into the main menu, I noticed that I still had 27,700 snowflakes, not 28,200 as I should have had after the reward.
I figured, screw it, I can get those rewards from 'tis the dang season or reason for the season.
I also noticed that I completed my competitive pass, great! But guess what, I was never given my 2 free legend packs. I saved my first 2 legend packs and should have received 2 more for a total of 4.
I don't keep track of all of the rewards that I am supposed to get but that looks like it needs to change. I feel that it is ridiculous that I would need to chase EA for a reward that I earned. I refuse to chase rewards because that will only waste even more of my personal time and energy. Just thinking about it frustrates me enough...
I suggest that people keep a VERY close eye and see if they get what they are supposed to. Specifically from the challenges and competitive pass.