Electrify America 1000kwh… how?

Hey! New electric car owner here 🙋🏻‍♀️ My car rep didn’t even tell me about this deal so I don’t know how to actually use this. So: I get to an Electrify America charge station, plug in, and then how do I redeem the 100kxh credit? I have the EA app and was able to add the Electrify America Plan to my “membership” section by getting the code from the dealership after the fact… but now what?