Yes! Hello there dear. (: Give me a moment....
https://youtu.be/YjObIyAO_cQ
Ok, So first go to your Nintendo account, The one linked to your console.
In order to get it, you must have enough points/coins to redeem it.
I suggest looking through this video in order to get these points if you don't have them.
Afterwards go to Redeem points and look for Nintendo digital content tab.
There should be flip note studio at 200 coins.
You can then get it in which they send you a number code.
Go to E-shop and add that number.
I used this video and it worked for me. My response may be late but hopefully this works for you :D