Had a similar situation the first time I attempted to use RAN. I also have a "demo" 2022 Launch edition. Tried using RAN for the first time and it didn't work. I ended up deleting my credit card from the app then putting it back in and since then I have not had any issues...
I contacted Rivian regarding these batteries. They stated they last about 3 to 5 years. Once they start going bad, you'll get an initial warning. The system will last about a week with that warning. There after you're likely to be stranded after a 2nd warning.
I'm in LA and mine came from Washington. It arrived about 5 weeks after. Gives you time to get your insurance completed.
Make sure they acknowledge your order after you put the deposit down.