08-07-2019 12:22 PM - edited 08-07-2019 12:25 PM
Welcome back to the forums, and thanks for reaching out about this.
I just checked, and it looks like Mario Maker 2 was not part of our Get $10 in my Best Buy certificates promotion. You can see the list of the games that qualified in this thread.
I see that you also sent in a private message about this. I will follow up with you about this there shortly.