Nintendo just announced that it is shuttering its Gold Points program, but it doesn't mean that they are just gone instantly.
To redeem Rogue Company codes you have to: First, go to the built-in store of your selected platform. This includes the Nintendo eShop, Microsoft Store, PlayStation Store, and the Epic Games Store.
Nintendo announced it is ending the My Nintendo Gold Points Switch eShop rewards program on March 24. "Thank you for participating in the My Nintendo Rewards program," reads the update from Nintendo.