1.change your account region to Argentina, or create a new account, setting region to Argentina
2.claim some gold points from new games released in one year (Zelda: tears of the kingdom, Mario Wonder, etc)
3.go to eshop, search for Blasphemous 1+2 (Choose the bundle which is the price error one. Blasphemous 1 and Blasphemous 2 are still in normal price)
4.pay with 205 gold points and get free Blasphemous 1+2.
Note. You can't pay with a credit card or PayPal in Argentina eshop unless you have a local bank issued credit card.
Note 2. You can still play with your original Nintendo account.
For some context:
So yeah, this basically works out to be around $0.40.
P.S.
Blasphemous + Blasphemous 2 Bundle is $68.95 on the Australian eShop.